KEVOS® WORKOS
Tools for better decisions.
Practical tools for the engineering, manufacturing, operations and commercial decisions your team makes every day. Each one shows its method, checks what could go wrong, tests how sensitive the answer is and gives you a report you can share with confidence.
MAKEOS engineering toolkit — a growing library of calculators built on established engineering methods. It covers machining, mechanical design, fasteners and gears, power transmission, fluid power, fabrication, quality and maintenance. Every result shows its working and tells you what to verify before you rely on it.
Clear inputs. Transparent calculations. Useful decisions.
Make or Buy (quick check)
Should you make it yourself or outsource it?
Open tool →DecideProject Gate Review
Is this project worth proceeding with?
Open tool →DecideWork Priority Score
What should go first?
Open tool →DecideTwo-Option Comparison
Which of two options gives the stronger overall outcome?
Open tool →DecideChange Impact Assessment
How disruptive is this proposed change?
Open tool →DecideRisk Rating (5 × 5 matrix)
How serious is this risk?
Open tool →DecideMake or Buy (detailed cost comparison)
Should you manufacture this internally or buy it from a supplier?
Open tool →MoneyReturn on Investment and NPV
Is this investment financially worthwhile?
Open tool →MoneyBreak-even and Margin of Safety
How much must you sell before you break even?
Open tool →MoneyMargin and Markup
What margin are you actually making?
Open tool →MoneyTrue Unit Cost
What does this work really cost?
Open tool →MoneyInvestment Hurdle Check
Does the investment clear a simple commercial hurdle?
Open tool →MoneyRecurring Savings Check
What is this improvement worth over a year?
Open tool →ProjectsProject Health Check
How healthy is this project right now?
Open tool →ProjectsProject Size and Governance
How large and complex is this project?
Open tool →ProjectsResource Fit
Do you have enough people-hours to deliver?
Open tool →ProjectsSchedule Risk Check
Are you likely to hit the deadline?
Open tool →ProjectsContingency Allowance
How much project contingency is reasonable?
Open tool →ProjectsBusiness Case with NPV
Does this project make commercial sense?
Open tool →OperationsCapacity Check
How much can you realistically produce?
Open tool →OperationsBottleneck and Line Balance
Which step is constraining the process?
Open tool →OperationsTakt Time
What pace must the process achieve?
Open tool →OperationsOEE (quick)
How effectively is the equipment being used?
Open tool →OperationsCycle Time vs Takt
What cycle time do you need to meet demand?
Open tool →OperationsStaffing Need
How many people are required for this workload?
Open tool →OperationsShift Output
How much should one shift realistically produce?
Open tool →OperationsOEE and Downtime Analysis
How effectively is this production asset being used?
Open tool →ManufacturingRack and Batch Fit
How many parts fit on a rack, jig or tray?
Open tool →ManufacturingMachine Load
How heavily loaded is this machine?
Open tool →ManufacturingScrap Cost Impact
What is scrap costing you?
Open tool →ManufacturingSetup Reduction Value
Is reducing setup time worth the investment?
Open tool →ManufacturingTooling Payback
How quickly will new tooling pay back?
Open tool →ManufacturingDowntime Cost
What does downtime really cost?
Open tool →ManufacturingYield and First-pass Yield
How much good output are you getting from input?
Open tool →EngineeringRetention Method Selector
Which axial retention method suits this joint, and what will it cost over its life?
Open tool →QuotingQuote Margin Check
Does this quote actually make commercial sense?
Open tool →QuotingPrice from Target Margin
What should you charge for the target margin?
Open tool →QuotingLabour Quote
What should the labour portion of the job cost?
Open tool →QuotingJob Cost Estimate
What is the expected total cost of this job?
Open tool →QuotingSupplier Comparison
Which supplier offers the stronger overall value?
Open tool →QuotingMinimum Order Quantity Check
What does the supplier MOQ do to your inventory economics?
Open tool →QuotingManufacturing Quote Builder
What should this manufacturing job be quoted at?
Open tool →InventoryReorder Point
When should you reorder?
Open tool →InventorySafety Stock
How much buffer stock should you hold?
Open tool →InventoryInventory Carrying Cost
What does holding this inventory cost each year?
Open tool →InventoryDays of Stock Cover
How many days of stock do you have?
Open tool →InventoryEconomic Order Quantity (EOQ)
What order quantity balances ordering and holding cost?
Open tool →ImprovementImprovement Value
What is this process improvement worth?
Open tool →ImprovementEight Wastes Check
Where is Lean waste most visible?
Open tool →ImprovementBefore and After Comparison
Did the change actually improve the process?
Open tool →ImprovementAutomation Business Case
Is this repetitive work worth automating?
Open tool →ImprovementProcess Maturity Score
How mature is this process?
Open tool →ImprovementJig and Fixture Return on Investment
Is this jig or fixture worth building?
Open tool →PlanningDemand vs Capacity
Can available capacity meet demand?
Open tool →PlanningDeadline Feasibility
Can you finish this quantity by the deadline?
Open tool →PlanningTeam Workload
Is the team overloaded?
Open tool →PlanningProfit What-if Scenario
What happens if volume, price or cost changes?
Open tool →PlanningProduction Capacity Planner
Can the current production setup meet demand?
Open tool →BusinessHire or Outsource
Should you hire or outsource this work?
Open tool →BusinessSubscription Value
Is this subscription earning its keep?
Open tool →BusinessBuy or Lease
Should you buy or lease this equipment?
Open tool →BusinessProcess or Software Readiness
Should you fix the process first or buy software?
Open tool →BusinessBuild or Buy Software
Should you build custom software or buy an existing product?
Open tool →ManufacturingCutting Speed and Spindle RPM
What RPM corresponds to the chosen cutting speed?
Open tool →ManufacturingMilling Feed, Removal Rate and Time
What feed, removal rate and cutting time follow from this setup?
Open tool →ManufacturingTurning Feed and Cutting Time
How long will a straight turning pass take?
Open tool →ManufacturingDrilling Travel and Time
What feed travel and time does a through-hole need?
Open tool →ManufacturingTapping Feed and Thread Lead
What synchronous feed matches this thread lead?
Open tool →EngineeringBolt Circle Coordinates
Where are the centres of equally spaced holes?
Open tool →EngineeringTaper Angle and Ratio
What half-angle and taper ratio match these dimensions?
Open tool →QualitySine Bar Height
What height difference sets this angle?
Open tool →EngineeringHole and Shaft Clearance Limits
What clearance or interference can occur at the size limits?
Open tool →MaterialsLinear Thermal Growth
How much does an unrestrained dimension change with temperature?
Open tool →EngineeringBeam Stress and Deflection
What stress and deflection does this ideal beam model predict?
Open tool →Power TransmissionCircular Shaft Torsion
What torsional stress and twist does this circular shaft develop?
Open tool →Power TransmissionTorque, Power and Speed
What shaft torque corresponds to this power and speed?
Open tool →Power TransmissionSpur Gear Pair Geometry
What nominal geometry and speed ratio follow from module and tooth counts?
Open tool →Power TransmissionOpen Belt Drive Geometry
What speed, wrap and pitch length follow from this pulley layout?
Open tool →HydraulicsHydraulic Cylinder Force and Speed
What ideal force and stroke time follow from pressure and flow?
Open tool →HydraulicsHydraulic Power and Pump Input
What fluid power and shaft input does this duty require?
Open tool →HydraulicsLiquid Pipe Velocity and Reynolds Number
What velocity and flow regime follow from diameter, flow and viscosity?
Open tool →PneumaticsPneumatic Cylinder Air Demand
What reference-volume air demand does this cylinder cycle create?
Open tool →MaterialsStock Volume and Mass
What is the theoretical mass of this stock geometry?
Open tool →FabricationSheet Bend Allowance and Deduction
What developed length follows from this bend and K-factor?
Open tool →FabricationPunching Force Estimate
What ideal force follows from the total cut perimeter?
Open tool →QualityProcess Capability from Summary Data
What Cp and Cpk follow from this mean and within-process spread?
Open tool →MaintenanceRepairable Asset Availability
What do operating and repair records show about availability?
Open tool →EngineeringSigned Three-Term Tolerance Stack
What are the worst-case limits of this signed assembly dimension?
Open tool →QualityIndependent Dimensional Uncertainty Budget
How do these independent measurement contributions combine?
Open tool →EngineeringSection Properties
What area and bending properties follow from this section?
Open tool →ManufacturingCountersink Depth and Breakthrough
How deep is this countersink, and will it reach the opposite face?
Open tool →ManufacturingTurning Cusp Height
What ideal peak-to-valley cusp follows from feed and nose radius?
Open tool →ManufacturingRadial Chip-Thinning Feed
How does reduced radial engagement change feed per tooth?
Open tool →ManufacturingBall-Nose Effective Diameter
What cutting diameter is engaged at this shallow axial depth?
Open tool →ManufacturingCircular Interpolation Feed
What tool-centre feed gives the specified feed around a circular wall?
Open tool →MaintenanceCoolant Blend
What volumes make the required final coolant concentration?
Open tool →MaintenanceCoolant Top-up Balance
How much make-up fluid reaches the target within sump capacity?
Open tool →FabricationThree-Size Stock Cut Planner
How can these pieces fit into equal-length stock bars?
Open tool →FabricationFillet Weld Quantity
How much deposited metal and consumable does this fillet require?
Open tool →FabricationWelding Arc Energy and Heat Input
What energy per length follows from these arc parameters?
Open tool →FabricationTube Bend Developed Length
What centreline length follows from these straights and bends?
Open tool →MaterialsDifferential Thermal Fit
How does clearance change at different part temperatures?
Open tool →EngineeringAxial Stress and Extension
What elastic stress and length change follow from this axial force?
Open tool →EngineeringBearing L10 Life
How many hours will this rolling bearing run before 10% of a group would be expected to fail?
Open tool →EngineeringBearing Static Load Ratio
How does the static load on this bearing compare with its static rating?
Open tool →Power TransmissionChain Linear Speed
How fast does this roller chain run, and how much does its speed fluctuate?
Open tool →Power TransmissionPulley Speed Ratio
What speed will the driven pulley run at, ignoring belt slip?
Open tool →Power TransmissionLead Screw Travel Speed
How fast does the nut travel at this screw speed?
Open tool →Power TransmissionLead Screw Input Torque
What torque is needed to drive this axial load through a lead screw?
Open tool →HydraulicsPipe Flow Velocity
What is the mean velocity of this flow in a pipe of this bore?
Open tool →HydraulicsDarcy Pipe Pressure Drop
How much pressure is lost to friction along this straight pipe?
Open tool →HydraulicsPump Shaft Power
What shaft power does a pump need for this flow and head?
Open tool →MaintenanceShaft Angular Offset
What angular misalignment does this offset across a known span represent?
Open tool →MaterialsDifferential Thermal Expansion
How does a fit clearance change when the bore and shaft materials expand differently?
Open tool →PneumaticsPneumatic Cylinder Swept Volume
What volume does a double-acting cylinder sweep in one complete cycle?
Open tool →GeometryCircular Segment and Arc
What chord, arc length, angle and area does this circular segment have?
Open tool →GeometryRegular Polygon and Hexagon Sizes
What are the across-flats, across-corners, side and area of this regular polygon?
Open tool →GeometryTriangle Solver
What are the missing sides, angles and area of this triangle?
Open tool →GeometryCylindrical Tank Contents
How much liquid is in this partly filled cylindrical tank?
Open tool →GeometryHopper and Frustum Volume
What volume and side area does this tapered hopper or frustum have?
Open tool →GeometryEllipse Area and Perimeter
What area, perimeter and eccentricity does this ellipse have?
Open tool →GeometryCompound Angle
What true compound angle results from tilts in two perpendicular planes?
Open tool →GeometryPolar and Rectangular Coordinates
What are the X–Y coordinates of this radius and angle, or the radius and angle of this X–Y point?
Open tool →QualityDovetail Measurement over Rods
What should the measurement over (or between) rods read for this dovetail?
Open tool →QualityV-Groove Measurement over a Pin
How far should a gauge pin stand above the surface in this V-groove?
Open tool →QualityGauge Block Stack Builder
Which gauge blocks make up this length with the fewest blocks?
Open tool →QualityAbbe Offset Error
How much error does an offset between the scale and the measured feature cause?
Open tool →QualityStatistical (RSS) Tolerance Stack
Will this gap stay within its limits, worst case and statistically?
Open tool →QualityISO Tolerance Grade (IT) Value
How large is the ISO IT tolerance grade for this nominal size?
Open tool →UnitsLength Converter
What is this length in other units?
Open tool →UnitsForce Converter
What is this force in other units?
Open tool →UnitsPressure and Stress Converter
What is this pressure or stress in other units?
Open tool →UnitsTorque Converter
What is this torque in other units?
Open tool →UnitsPower Converter
What is this power in other units?
Open tool →UnitsEnergy and Work Converter
What is this energy in other units?
Open tool →UnitsVolumetric Flow Converter
What is this volumetric flow rate in other units?
Open tool →UnitsMass Converter
What is this mass in other units?
Open tool →UnitsSpeed and Feed Rate Converter
What is this speed in other units?
Open tool →UnitsAngle Converter
What is this angle in other units?
Open tool →UnitsTemperature Converter
What is this temperature, or temperature difference, in other scales?
Open tool →UnitsDecimal to Fraction
What is the nearest fraction to this decimal, and how far off is it?
Open tool →MechanicsResultant of Concurrent Forces
What single force is equivalent to these forces acting at one point?
Open tool →MechanicsInclined Plane and Friction
What force pushes, holds or lowers a load on this slope?
Open tool →MechanicsFlywheel Energy and Speed Fluctuation
How much energy does this flywheel give up between two speeds, and is its rim speed acceptable?
Open tool →MechanicsCentrifugal Force on a Rotating Mass
What outward force does this rotating mass exert?
Open tool →MechanicsPermissible Residual Unbalance (Balance Grade)
How much residual unbalance is allowed for this rotor and balance grade?
Open tool →MechanicsImpact Energy and Stopping Force
What energy and force result when this mass is stopped over a short distance?
Open tool →MechanicsPoint-to-Point Move Time
How long does this axis or conveyor move take with the given speed and acceleration?
Open tool →MechanicsSling Leg Tension
What tension does each sling leg carry at this angle, and is it within the rating?
Open tool →MechanicsCombined Centre of Gravity
Where is the centre of gravity of these combined masses?
Open tool →MechanicsMass Moment of Inertia
What is the mass moment of inertia of this body about the chosen axis?
Open tool →MechanicsBelt, Rope and Band Friction (Capstan)
What is the most tension the tight side can hold for this wrap and friction?
Open tool →StrengthColumn Buckling (Euler and Johnson)
What load will buckle this column or strut, and is the safety factor enough?
Open tool →StrengthPrincipal Stresses and von Mises
What are the principal stresses, maximum shear and von Mises stress for this stress state?
Open tool →StrengthPressure Cylinder Wall Stress
What stresses does internal pressure cause in this tube or cylinder wall?
Open tool →StrengthFatigue Safety Factor (Goodman)
Is this fluctuating stress safe for infinite life by the Goodman, Soderberg and Gerber criteria?
Open tool →StrengthBeam Cases: Off-Centre, Fixed and Propped
What reactions, moment, stress and deflection does this beam case give?
Open tool →StrengthShaft Diameter for Bending and Torsion
What shaft diameter carries this bending moment and torque at the allowable shear stress?
Open tool →StrengthShaft Critical (Whirling) Speed
At what speed will this shaft whirl, and is the running speed clear of it?
Open tool →StrengthCircular Flat Plate under Pressure
What stress and deflection does uniform pressure cause in this round plate?
Open tool →StrengthPress and Shrink Fit Pressure and Holding Torque
What contact pressure, hub stress and holding torque does this interference give?
Open tool →StrengthRestrained Thermal Stress
What stress and force build up if this member is prevented from expanding?
Open tool →StrengthHertz Contact Stress
What contact pressure develops between these curved bodies under load?
Open tool →SpringsHelical Compression Spring Design Check
What rate, load and stress will this compression spring have at its working length?
Open tool →SpringsHelical Extension Spring Check
What load and body stress will this extension spring have at its working extension?
Open tool →SpringsHelical Torsion Spring Check
How far will this torsion spring wind, how highly stressed is it and will it still fit its arbor?
Open tool →SpringsSprings in Series or Parallel
What is the combined rate of these springs, and how is the load shared?
Open tool →SpringsDisc (Belleville) Spring Load and Stress
What force and stress does this disc spring, or stack, give at a deflection?
Open tool →FastenersBolt Tightening Torque and Preload
What preload does this torque give, or what torque gives the target preload?
Open tool →FastenersThread Length of Engagement
How long must the thread engagement be so the bolt breaks before the threads strip?
Open tool →FastenersBolted Joint Load Sharing and Separation
How much of the external load reaches the bolt, and when will the joint separate?
Open tool →FastenersBolt and Pin Shear and Bearing
Are these bolts or pins strong enough in shear and bearing for this load?
Open tool →FastenersRiveted Lap Joint Efficiency
How strong is this riveted joint compared with the solid plate, and how will it fail?
Open tool →FastenersTap Drill for Percentage of Thread
What drill size gives the required percentage of thread for a cutting or forming tap?
Open tool →ThreadsISO Metric Thread Basic Dimensions
What are the basic pitch, minor and root diameters and stress area of this metric thread?
Open tool →ThreadsUnified Inch Thread Basic Dimensions
What are the basic pitch and minor diameters and stress area of this UNC or UNF thread?
Open tool →ThreadsThree-Wire Thread Measurement
What should the measurement over three wires read for this thread, or what pitch diameter does a reading give?
Open tool →ThreadsThread Helix Angle and Screw Efficiency
What is the helix angle of this thread, how efficient is it, and will it self-lock?
Open tool →ThreadsSimple Indexing on a Dividing Head
How many crank turns and holes give this number of divisions on a dividing head?
Open tool →ThreadsChange Gears for Thread Cutting
Which change gears cut this thread lead on this lathe?
Open tool →GearsHelical Gear Pair Geometry
What diameters, centre distance and contact ratios does this helical gear pair have?
Open tool →GearsGear Tooth Forces
What tangential, radial and axial forces does this gear mesh put on the shafts?
Open tool →GearsGear Tooth Bending Stress (Lewis)
What bending stress does the tooth load cause at the tooth root, by the Lewis equation?
Open tool →GearsWorm Gear Geometry and Efficiency
What ratio, lead angle, centre distance and efficiency does this worm drive have, and will it back-drive?
Open tool →GearsStraight Bevel Gear Geometry
What pitch angles, cone distance and diameters does this bevel gear pair have?
Open tool →GearsGear Chordal Thickness and Addendum
What chordal thickness and chordal addendum should a gear tooth caliper read?
Open tool →GearsGear Span (Base Tangent) Measurement
What should the span measurement over k teeth read for this spur or helical gear?
Open tool →GearsSpur Gear Measurement over Pins
What should the measurement over two pins read for this external spur gear?
Open tool →GearsGear Train Ratio, Speed and Torque
What is the overall ratio, output speed and output torque of this gear train?
Open tool →GearsCam Follower Peak Velocity and Acceleration
What peak velocity, acceleration and inertia force does this cam rise produce?
Open tool →Power TransmissionBelt Drive Tensions and Shaft Load
What belt tensions and shaft load are needed to transmit this power without slipping?
Open tool →Power TransmissionRoller Chain Length and Centre Distance
How many links does this roller chain drive need, and what centre distance results?
Open tool →Power TransmissionReflected Inertia and Motor Acceleration Torque
What torque must the motor give to accelerate this load through the gearbox, and is the inertia ratio reasonable?
Open tool →Power TransmissionBall Screw Critical Speed and Buckling
Is this ball screw below its critical speed and buckling load?
Open tool →Power TransmissionPlate Clutch and Disc Brake Torque
How much torque can this plate clutch or disc brake transmit?
Open tool →Power TransmissionThree-Phase Motor Power, Current and Torque
What current does this three-phase motor draw, or what power does a measured current mean?
Open tool →Power TransmissionParallel Key Shear and Crushing
Is this parallel key long enough for the torque in shear and crushing?
Open tool →EngineeringRolling Bearing Adjusted Rating Life
How many hours will this ball or roller bearing last at the required reliability?
Open tool →EngineeringPlain Bearing Pressure, Velocity and PV
Are the pressure, sliding speed and PV of this bushing within the material’s limits?
Open tool →EngineeringO-Ring Squeeze, Stretch and Gland Fill
Will this O-ring have the right squeeze, stretch and gland fill in this groove?
Open tool →ManufacturingTurning Cutting Force and Power
What cutting force, power and torque does this turning cut need, and can the machine deliver it?
Open tool →ManufacturingMilling Power and Spindle Torque
What power and torque does this milling cut need, and can the spindle deliver it?
Open tool →ManufacturingDrilling Power, Torque and Thrust
What power, torque and thrust does this drill need?
Open tool →ManufacturingBall-Nose Scallop Height and Stepover
What scallop height does this stepover leave, or what stepover gives the target height?
Open tool →ManufacturingTaylor Tool Life and Economic Cutting Speed
How long will the tool last at this speed, and what speed gives the lowest cost per part?
Open tool →ManufacturingGrinding Wheel Speed and Removal Rate
Is this wheel running within its marked maximum speed, and what removal rate does the grind give?
Open tool →ManufacturingBroach Tooth Pitch
What tooth pitch should this broach have for its chip space and machine capacity?
Open tool →ManufacturingBoring Bar Deflection
How far will this boring bar deflect under the cutting force, and is the overhang reasonable?
Open tool →ManufacturingElectroplating Thickness and Time (Faraday)
How long must this part be plated to reach the thickness, and what current does it need?
Open tool →FabricationGuillotine Shearing Force
What force does it take to shear this sheet or plate, and can the shear do it?
Open tool →FabricationPress Brake Bending Force
What tonnage does this V-die bend need, and is the press brake big enough?
Open tool →FabricationDrawn Shell Blank Diameter and Draws
What blank diameter is needed for this drawn cup, and how many draws will it take?
Open tool →FabricationFillet Weld Strength
Can these fillet welds carry the load, and what leg size is needed?
Open tool →FabricationCarbon Equivalent and Weldability
What carbon equivalent does this steel have, and does it suggest preheat?
Open tool →FabricationCasting Solidification Time and Riser Check
Will this cylindrical riser solidify after the casting, and what pattern size allows for shrinkage?
Open tool →MaterialsBrinell Hardness from Indentation
What Brinell hardness does this indentation give, and is the test valid?
Open tool →MaterialsHeat Flow Through a Layered Wall
How much heat flows through this insulated wall, and what are the layer temperatures?
Open tool →MaterialsHeating Energy and Time
How much energy and time does it take to heat this material or liquid?
Open tool →HydraulicsOrifice and Restrictor Flow
How much liquid flows through this orifice at this pressure drop, or what drop does a flow cause?
Open tool →HydraulicsHydraulic Accumulator Size
What gas-charged accumulator size delivers this volume between the working pressures?
Open tool →HydraulicsPipe Friction Factor and Pressure Drop
What friction factor and pressure drop does this flow have in this pipe?
Open tool →HydraulicsPump and Fan Affinity Laws
What flow, head and power will this centrifugal pump or fan give at a new speed or impeller size?
Open tool →HydraulicsPump NPSH Available
Is the net positive suction head available enough to prevent cavitation?
Open tool →HydraulicsHydraulic Motor Torque, Speed and Power
What torque, speed and power will this hydraulic motor give for this flow and pressure?
Open tool →HydraulicsPipe or Hose Size for a Target Velocity
What inside diameter keeps this flow at the target velocity?
Open tool →HydraulicsHydrostatic Pressure and Tank Wall Force
What pressure and force does this liquid depth put on a tank wall and floor?
Open tool →PneumaticsAir Compressor Power
What shaft power does it take to compress this air flow to this pressure?
Open tool →PneumaticsCompressed Air Leak Cost
How much air does this leak waste, and what does it cost each year?
Open tool →PneumaticsAir Receiver Size
What receiver volume covers this demand above compressor supply for this time and pressure band?
Open tool →PneumaticsGas Volume at Pressure and Temperature
What volume does this gas occupy at the new pressure and temperature?
Open tool →MoneyDepreciation Schedule
How does this asset depreciate each year by straight-line, sum-of-years’-digits or declining balance?
Open tool →MoneyEquivalent Annual Cost Comparison
Which of two machines or options has the lower equivalent uniform annual cost?
Open tool →MoneyInternal Rate of Return (Uneven Cash Flows)
What rate of return does this investment earn with these yearly cash flows?
Open tool →MoneyInterest and Equivalence Factors
What are the compound interest factors for this rate and period?
Open tool →QualityNormal Distribution Out-of-Tolerance
What fraction of parts will fall outside these limits for this mean and standard deviation?
Open tool →QualitySample Size to Estimate a Mean
How many measurements or tests are needed to estimate the mean within this margin?
Open tool →QualityTwo-Sample Comparison (t-test)
Is the difference between these two averages statistically significant?
Open tool →GeometryHelix (Coil) Developed Length
How long is the wire, tube or strip wound into this helix?
Open tool →GeometryTank and Vessel Volume with Heads
What is the total volume of this vessel including its ends?
Open tool →GeometryLinear Interpolation
What value lies between these two table entries?
Open tool →GeometryCircle Through Three Points
What centre and radius pass through these three measured points?
Open tool →QualityTrue Position with Bonus Tolerance
Is this hole or pin within its positional tolerance, including any bonus from its size?
Open tool →QualityInternal Taper Angle from Two Balls
What is the included angle and top diameter of this tapered bore, measured with two balls?
Open tool →QualityGo and No-Go Gauge Sizes
What sizes should the go and no-go plug or ring gauges have for this toleranced feature?
Open tool →MechanicsToggle Joint Force
What output force does this toggle joint produce for the applied force?
Open tool →MechanicsWedge Force with Friction
What force drives this wedge under a load, and will it stay in place?
Open tool →MechanicsPower Screw Raise and Lower Torque
What torque raises and lowers this load with a screw jack or lead screw, including collar friction?
Open tool →MechanicsBand Brake Torque and Lever Force
What band tensions and lever force does this simple band brake need for the braking torque?
Open tool →MechanicsSingle Shoe (Block) Brake
What lever force does this block brake need, and is it self-energising or self-locking?
Open tool →Power TransmissionCone Clutch Torque and Engaging Force
How much torque can this cone clutch carry, and what force engages it?
Open tool →MechanicsWire Rope Reeving: Line Pull and Safety Factor
What pull is on the hoist rope with this reeving, and is the rope’s safety factor enough?
Open tool →StrengthRectangular Bar in Torsion
What shear stress and twist does torque cause in this rectangular or square bar?
Open tool →StrengthCurved Beam and Hook Stress
What are the inner and outer fibre stresses in this curved beam or hook section?
Open tool →StrengthTube Collapse under External Pressure
At what external pressure will this long tube collapse, and is the margin enough?
Open tool →StrengthEccentrically Loaded Column (Secant Formula)
What is the peak stress in this column with an offset load, and what load factor brings it to yield?
Open tool →StrengthImpact Load on a Beam
What stress and deflection does a dropped weight cause in this beam?
Open tool →StrengthSection Properties: I, T, Channel and Angle
What are the area, centroid, second moments and section moduli of this I, T, channel or angle section?
Open tool →StrengthThin-Walled Closed Tube in Torsion
What shear stress and twist does torque cause in this thin-walled round or rectangular tube?
Open tool →StrengthRotating Disc Stress and Burst Margin
What stress does spinning cause in this solid or bored disc, and how fast can it run before yield?
Open tool →StrengthCombined Axial and Biaxial Bending Stress
What are the corner stresses in this rectangular section under axial load and bending about both axes?
Open tool →SpringsFlat and Leaf Spring
How much does this flat or leaf spring deflect, and how highly is it stressed?
Open tool →SpringsTorsion Bar Spring
What rate, twist and shear stress does this torsion bar spring have?
Open tool →MaterialsASTM Grain Size Number
What ASTM grain size number does this count or intercept measurement give?
Open tool →MaterialsCorrosion Rate from Mass Loss
How fast is this metal corroding, and how long will the corrosion allowance last?
Open tool →FastenersBolt Stretch and Turn-of-Nut Angle
How much will this bolt stretch at the target preload, and how far must the nut turn from snug?
Open tool →FastenersEccentrically Loaded Bolt Group
Which bolt in this group carries the most shear when the load is offset?
Open tool →ThreadsAcme and Trapezoidal Thread Dimensions
What are the basic dimensions of this Acme or metric trapezoidal thread?
Open tool →ThreadsNPT Pipe Thread Gauge Dimensions
What are the pitch diameters and effective thread length of this NPT taper pipe thread?
Open tool →ThreadsDifferential Indexing on a Dividing Head
How can this number of divisions be indexed when simple indexing cannot do it?
Open tool →ThreadsHelical Milling Lead and Change Gears
What lead does this helix have, and which change gears cut it on the dividing head?
Open tool →ThreadsThread Turning Infeed per Pass
How deep should each pass be when single-point turning this thread?
Open tool →GearsPlanetary Gear Train
What ratio, output speed and torque does this planetary (epicyclic) gear set give?
Open tool →GearsProfile Shift and Working Centre Distance
What working centre distance and pressure angle result from these profile shifts, and are the teeth undercut?
Open tool →GearsSpur Gear Contact Ratio
What transverse contact ratio does this spur gear pair have?
Open tool →GearsSpur Gear Dimensions (Diametral Pitch)
What are the diameters, tooth depth and centre distance of this inch (diametral pitch) spur gear pair?
Open tool →GearsRoller Chain Sprocket Diameters
What are the pitch, outside, bottom and caliper diameters of this sprocket?
Open tool →ManufacturingTool Nose Radius Compensation for Tapers
How far must the programmed taper line move to allow for the insert nose radius?
Open tool →ManufacturingTurning Feed for Surface Finish (Ra)
What surface finish does this feed and nose radius give, or what feed achieves the target Ra?
Open tool →ManufacturingSpeeds and Feeds in Inch Units
What spindle speed and feed rate follow from this SFM and chip load?
Open tool →ManufacturingKnurling Blank Diameter for Tracking
What blank diameter lets this knurl track cleanly with a whole number of teeth?
Open tool →ManufacturingBand Saw Cutting Time
How long does each cut take on the band saw, and how many cuts per hour?
Open tool →ManufacturingCenterless Grinding Through-Feed Rate
How fast do parts pass through this centerless grinder, and how many per minute?
Open tool →MaintenanceCoolant Concentration from Refractometer
What is the coolant concentration from this refractometer reading, and what should be added to correct it?
Open tool →FabricationSheet Metal Bending Springback
How much will this bend spring back, and how far must it be overbent?
Open tool →FabricationTube Bending Wall Thinning
How much will the tube wall thin on the outside of this bend, and thicken on the inside?
Open tool →FabricationFillet Weld Cost per Metre
What does this fillet weld cost per metre in labour, filler and gas?
Open tool →FabricationLap Joint Overlap (Brazed, Soldered or Bonded)
How much overlap does this brazed, soldered or bonded lap joint need?
Open tool →FabricationPaint and Powder Coating Coverage
How much paint or powder is needed to coat this area at the specified film thickness?
Open tool →EngineeringRolling Bearing Friction Torque and Heat
How much friction torque and heat does this rolling bearing produce?
Open tool →EngineeringOil Viscosity at Temperature
What is this oil’s viscosity at the operating temperature?
Open tool →MaintenanceRim and Face Shaft Alignment Corrections
How many shims should go under each foot of the movable machine to correct this misalignment?
Open tool →Power TransmissionInduction Motor Synchronous Speed, Slip and Load
What is this motor’s synchronous speed and slip, and roughly how loaded is it?
Open tool →HydraulicsWater Hammer Pressure Surge
How big a pressure surge will closing this valve cause?
Open tool →HydraulicsCoolant Flow for a Heat Load
What flow of water or oil removes this heat load for the allowed temperature rise?
Open tool →PneumaticsCompressed Air Pipe Pressure Drop
What pressure drop does this compressed air flow cause in this pipe?
Open tool →PneumaticsPneumatic Cylinder Force and Bore Selection
What force does this air cylinder give, and is the bore large enough for the load?
Open tool →PneumaticsVacuum Cup Holding Force
Will these suction cups hold this part during handling?
Open tool →HydraulicsValve Flow Coefficient (Kv and Cv)
What Kv does this valve need for the flow and pressure drop, or what flow will a valve pass?
Open tool →MaterialsRadiant Heat Loss
How much heat does this hot surface radiate to its surroundings?
Open tool →MaterialsHeat Loss from an Insulated Pipe
How much heat does this insulated pipe lose, and how hot is the outside surface?
Open tool →HydraulicsHeat Exchanger LMTD and Area
What log mean temperature difference and area does this heat exchanger need for the duty?
Open tool →MoneyProcess Selection Break-Even Quantity
Above what quantity does the process with higher set-up cost become cheaper?
Open tool →MoneyLearning Curve Unit Time and Cost
How long will the nth unit take, and what will the batch cost, as the team learns?
Open tool →QualityX-bar and R Control Chart Limits
What are the control limits for this X-bar and R chart?
Open tool →QualityAcceptance Sampling Probability (OC Curve)
What is the chance this sampling plan accepts a lot with a given defect rate?
Open tool →MaintenanceWeibull Reliability and B10 Life
What is the probability this component survives to a given time, and what are its B10 life and MTTF?
Open tool →GeometryPlane Figure Area and Perimeter
What area and perimeter does this flat shape have?
Open tool →GeometryPolygon Area and Centroid from Coordinates
What is the area, perimeter and centroid of this polygon from its corner coordinates?
Open tool →GeometryVolume and Surface of Solids
What volume, surface area and mass does this solid have?
Open tool →GeometryCentre of Gravity of Common Shapes
Where is the centre of gravity of this shape or solid?
Open tool →MathematicsComplex Number Calculator
What is the sum, difference, product or quotient of these complex numbers, in rectangular and polar form?
Open tool →GeometryCylindrical and Spherical Coordinates
What are the rectangular, cylindrical or spherical coordinates of this point?
Open tool →GeometryDistance and Angle Between Two Points
How far apart are these two points, and at what angle?
Open tool →MathematicsQuadratic and Cubic Equation Solver
What are the roots of this quadratic or cubic equation?
Open tool →MathematicsSimultaneous Equations and 3 × 3 Matrix
What solves these two or three simultaneous linear equations, and what are the determinant and inverse?
Open tool →MathematicsFactorials, Permutations and Combinations
How many arrangements or selections of r items from n are possible?
Open tool →MathematicsTrigonometric and Involute Functions
What are the trigonometric, versed and involute functions of this angle, or the angle for an involute value?
Open tool →UnitsDegrees, Minutes and Seconds Converter
What is this angle in degrees–minutes–seconds, decimal degrees and radians?
Open tool →GeometryTriangle from Two Sides and an Opposite Angle
Which triangles have these two sides and the angle opposite one of them?
Open tool →GeometryRollers Around a Shaft and Circles in Circles
What size rollers fit around this shaft, how big a circle holds N equal circles, or how many circles fit in a rectangle?
Open tool →UnitsDensity and Specific Gravity Converter
What is this density in other units, or as a specific gravity?
Open tool →UnitsWind Chill Temperature
How cold does it feel at this air temperature and wind speed?
Open tool →StrengthOverhanging Beam
What reactions, moments and deflections does this beam with overhanging ends have?
Open tool →StrengthContinuous Beam over Two Spans
What reactions, moments and deflections does this beam continuous over three supports have?
Open tool →StrengthBeam Cases: Fixed, Guided, Propped and Partial Loads
What moments and deflection does this less common beam case give?
Open tool →StrengthRound Shaft under Axial Load, Bending and Torsion
What are the combined stresses in this round shaft or bar, and is it safe against yield?
Open tool →StrengthThree-Dimensional Principal Stresses
What are the three principal stresses, maximum shear and von Mises stress for this 3D stress state?
Open tool →StrengthColumn Strength by Rankine–Gordon
What load will this column carry by the Rankine–Gordon formula?
Open tool →StrengthSection Properties: Ellipse, Hexagon, Triangle, Z and Cross
What are the area, second moments and section moduli of this section?
Open tool →MechanicsMass Moment of Inertia: Cone, Torus, Ellipsoid and Shells
What is the mass moment of inertia and radius of gyration of this body?
Open tool →MechanicsResultant of Non-Concurrent and Parallel Forces
What single force and line of action replaces these forces acting at different points?
Open tool →SpringsSquare-Wire Compression Spring
What rate, load and stress does this square-wire compression spring have?
Open tool →EngineeringJournal Bearing Friction (Petroff) and Sommerfeld Number
What friction torque, power loss and Sommerfeld number does this lightly loaded journal bearing have?
Open tool →EngineeringThrust Bearing Pad Unit Load and PV
What unit load, sliding speed and PV does this pad or washer thrust bearing run at?
Open tool →PneumaticsGas Compression and Expansion Process
What final volume, temperature and work result from compressing or expanding this gas?
Open tool →ThreadsUnified Thread Limits of Size (Classes 1A–3B)
What are the limits of size for this UNC, UNF or UN thread in the chosen class?
Open tool →ThreadsISO Metric Thread Limits of Size (6g, 6H and Others)
What are the limits of size for this metric thread in the chosen tolerance class?
Open tool →ThreadsWhitworth Thread Basic Dimensions
What are the basic pitch and minor diameters of this BSW, BSF or BSP (parallel) Whitworth thread?
Open tool →ThreadsThree-Wire Measurement with Lead Angle (Buckingham)
What should the measurement over wires read for this coarse-lead or multi-start thread or worm?
Open tool →GearsInvolute Spline Basic Dimensions (ANSI B92.1)
What are the basic diameters and space width of this involute spline?
Open tool →GearsInvolute Gear Cutter Number
Which involute gear milling cutter number should cut this spur, helical or bevel gear?
Open tool →GearsCrossed Helical Gears (Shafts at Right Angles)
What diameters and centre distance does this crossed helical gear pair at 90° have?
Open tool →Power TransmissionKeyseat Depth and Measurement over Key
What depths should be measured when cutting this keyseat in a round shaft?
Open tool →QualityArc Radius from Measurement over Rolls
What radius does this concave or convex gauge or part have, from a measurement over two rolls?
Open tool →QualityBolt Circle Measurement over Pins
What is the distance across opposite holes of this bolt circle, measured over plugs?
Open tool →QualityTaper and Angle Gauges with Discs
What angle or taper do these two discs set, or where must they be placed for a required taper?
Open tool →ManufacturingDrill Sizes: Number, Letter, Fraction and Metric
What is the decimal size of this number or letter drill, or which drills are closest to a size?
Open tool →ManufacturingCutting Speed or Feed for Full Machine Power
How fast can this cut run before it uses all the available spindle power?
Open tool →Power TransmissionCrossed Belt and Three-Pulley Belt Length
How long is the belt for this crossed drive or for a belt around three pulleys?
Open tool →StrengthSquare and Rectangular Flat Plates
What stress and deflection does this square or rectangular plate have under load?
Open tool →StrengthSpherical Shell under Internal Pressure
What stress does internal pressure cause in this spherical vessel or dished end?
Open tool →StrengthShaft Diameter for Brittle Materials and Hollow Shafts
What diameter does this shaft need by the maximum-normal-stress theory, and how does a hollow shaft compare?
Open tool →Power TransmissionFlange Coupling Bolt Capacity
Can the bolts of this flanged coupling carry the torque in shear?
Open tool →FastenersTaper Pin for Torque Transmission
What mean diameter of taper pin through this shaft and hub transmits the torque safely?
Open tool →Power TransmissionUniversal (Cardan) Joint Speed Variation
How much does the output speed of this universal joint vary over each revolution?
Open tool →StrengthFatigue Notch Factor from Stress Concentration
How much does this notch, fillet or groove reduce fatigue strength?
Open tool →StrengthFatigue Life from the S-N Curve (Steel)
How many cycles will this steel part survive at this alternating stress?
Open tool →MaterialsVickers and Knoop Hardness from Indentation
What Vickers or Knoop hardness does this indentation give?
Open tool →MaterialsElastic Constants: E, G, ν and Bulk Modulus
What are the other elastic constants of an isotropic material from the two I know?
Open tool →MaterialsEnergy and Time to Melt Metal
How much energy and time does it take to melt and superheat this charge of metal?
Open tool →MaterialsCantilever Snap-Fit Design (Plastics)
Will this snap-fit finger survive assembly, and what forces does it need?
Open tool →GearsSpur and Helical Gear Contact (Pitting) Stress
What contact stress does this gear mesh run at, compared with the allowable for the material?
Open tool →GearsCam Pressure Angle
What is the maximum pressure angle for this cam rise, base circle and roller follower?
Open tool →EngineeringBearing Life for a Load and Speed Duty Cycle
What is the equivalent load and rating life of this bearing over a varying duty cycle?
Open tool →Power TransmissionRMS Torque for a Motor Duty Cycle
What is the RMS torque of this duty cycle, and can the motor carry it continuously?
Open tool →Power TransmissionBall Screw Rating Life
How long will this ball screw last at its mean load and speed?
Open tool →Power TransmissionTiming (Synchronous) Belt Length and Teeth
How many teeth does the timing belt need, and what centre distance results?
Open tool →MaintenanceThermal Growth for Hot Shaft Alignment
How much will each machine’s shaft rise when hot, and what cold offset should be set?
Open tool →FabricationMinimum and Maximum Bend Radius
What is the smallest bend radius this sheet takes without cracking, and the largest that still forms permanently?
Open tool →ManufacturingAnodizing Time and Coating Thickness
How long must this part anodize to reach the coating thickness, and how much current is needed?
Open tool →FabricationCasting Gating System Choke Area
What choke (sprue) area fills this mould in the planned pouring time?
Open tool →ManufacturingCNC Arc Linearisation Chord Error
What chord error do these line segments leave on an arc, or what segment length meets a tolerance?
Open tool →ManufacturingChip Thickness and Specific Cutting Force
What mean chip thickness does this cut produce, and what specific cutting force results?
Open tool →ManufacturingGrinding Equivalent Diameter and G-Ratio
What is the equivalent wheel diameter for this cylindrical grind, and what G-ratio was achieved?
Open tool →ManufacturingThread Milling Tool Path and Feed
What tool-centre path and programmed feed does this helical thread milling operation need?
Open tool →ThreadsAngular Indexing on a Dividing Head
What crank movement turns the work through this angle on a dividing head?
Open tool →FastenersBolted Joint Fatigue Check
Will the bolt in this preloaded joint survive the fluctuating external load?
Open tool →MoneyMachine Hour Rate
What does this machine cost per productive hour to own and run?
Open tool →MoneyBenefit–Cost Ratio
Do the discounted benefits of this project exceed its discounted costs, and by how much?
Open tool →MathematicsGeometric Speed and Size Series
What geometric series of speeds (or sizes) runs between these limits in this many steps?
Open tool →MathematicsPrime Factors, Greatest Common Divisor and Least Common Multiple
What are the prime factors of these numbers, and their greatest common divisor and least common multiple?
Open tool →GearsRack and Pinion Speed, Force and Travel
What linear speed, force and travel does this rack and pinion give?
Open tool →MechanicsUniformly Accelerated Motion and Falling Bodies
How fast and how far does this body travel under constant acceleration, or how fast does it hit the ground?
Open tool →MechanicsTorque to Accelerate a Rotating Load
How much torque does it take to bring this rotating load up to speed in the time allowed?
Open tool →MechanicsImpulse, Momentum and Collisions
What average force changes this body’s velocity in the time available, and how do two bodies move after they collide?
Open tool →MechanicsPendulum Period: Simple, Compound, Conical and Torsional
What is the period of this pendulum, and how much does a large swing change it?
Open tool →MechanicsFly-ball (Porter) Governor Height and Sensitivity
At what height does this fly-ball governor run at this speed, and how sensitive is it?
Open tool →MechanicsGeneva Wheel Indexing Mechanism
What crank radius and wheel size does a Geneva drive need, and how long are its index and dwell?
Open tool →MechanicsGyroscopic Couple and Bearing Reactions
What gyroscopic couple does this spinning rotor exert when its axis is turned, and what load does it put on the bearings?
Open tool →MechanicsProny Brake and Absorption Dynamometer Power
How much power is the machine delivering according to the brake arm, scale reading and speed?
Open tool →MechanicsCatenary Cable Sag, Tension and Length
What tension and length does a cable or chain of this weight have when it sags this much over the span?
Open tool →MechanicsRolling Resistance of Wheels and Rollers
What force does it take to keep this wheeled load rolling, and how does that compare with sliding it?
Open tool →MechanicsCounterbalancing Masses in One Plane
What counterweight, at what angle, balances these masses rotating in one plane?
Open tool →MechanicsTwo-Plane (Dynamic) Balance Corrections
What correction masses in two planes give this rotor a running (dynamic) balance?
Open tool →MechanicsTorsional Natural Frequency of a Drive
At what frequency will this motor-and-load drive resonate in torsion, and is that safely above the control bandwidth?
Open tool →HydraulicsBuoyancy and Submerged Weight
Will this body float, and how much does it weigh when submerged?
Open tool →MechanicsWind Pressure and Force on a Surface
What force and overturning moment does wind at this speed put on this sign, guard or structure?
Open tool →PneumaticsVelocity and Flow of Escaping Compressed Air
How fast and how much air escapes from this tank through a hole or nozzle?
Open tool →Power TransmissionRatchet Wheel Tooth Pitch
What tooth pitch and outside diameter does a ratchet wheel need to hold this turning moment?
Open tool →MechanicsLever Force with Several Loads
What effort balances these loads on a lever, or how long must the effort arm be?
Open tool →MechanicsWindlass, Gear Hoist and Differential Pulley Effort
What effort lifts this load with a windlass, geared winch, rope block or differential chain pulley?
Open tool →GearsGear Tooth Bending Stress (AGMA Form)
What bending stress does this tangential load put on the gear tooth root, and is the safety factor enough?
Open tool →Power TransmissionInvolute Spline Stresses and Torque Capacity
Are the shear and compressive stresses in this involute spline within the allowables for the torque?
Open tool →GearsInternal Gear and Pinion Proportions
What diameters, centre distance and tooth thicknesses do this internal gear and pinion need, and do the tooth numbers interfere?
Open tool →MaintenanceLubricant Film Thickness Ratio (Lambda)
Is the lubricant film thick enough to separate these rolling surfaces?
Open tool →FastenersTurn-of-Nut Angle for Bolt Preload
Through what angle must the nut turn to reach this preload, or what preload does a given turn give?
Open tool →FabricationDeep Drawing and Ironing Punch Force
What punch force does this drawing or ironing operation need?
Open tool →ThreadsThreading Roll Pitch Diameter
What pitch diameter should a single- or multiple-start threading roll have for this screw thread?
Open tool →GearsGear Hobbing Cycle Time
How long does it take to hob this gear at the chosen hob speed and feed?
Open tool →FabricationLength of Angle or Bar Bent to a Ring
What length of angle iron or bar do I cut to roll this ring inside or outside a tank?
Open tool →FabricationPerforated Sheet Open Area and Hole Count
What open area, hole count and weight does a perforated sheet with this hole and pitch have?
Open tool →EngineeringMachinery Noise: Machine Level, Combined Sources and Distance
How loud is this machine on its own, how loud are several sources together, and how does level fall with distance?
Open tool →MaterialsEquivalent Thickness for Equal Stiffness or Strength
How thick must a part in the new material be to match the stiffness and strength of the original?
Open tool →Mathematics3 × 3 Matrix Determinant, Adjoint and Inverse
What are the determinant and inverse of this 3 × 3 matrix?
Open tool →MaterialsWood Moisture Content and Density
What is the moisture content of this timber, and what is its density at a given moisture content?
Open tool →GeometryPrismoidal Formula Volume
What is the volume of this prism, pyramid, frustum or earthwork from its end and middle sections?
Open tool →GeometrySurface and Volume of Revolution (Pappus–Guldinus)
What surface area and volume does a profile sweep out when it is revolved about an axis?
Open tool →GeometryArea of an Irregular Outline by Simpson’s Rule
What is the area of this irregular outline from measured heights at equal spacing?
Open tool →GeometrySpherical Triangle and Great-Circle Distance
What are the angles and area of this spherical triangle, or the great-circle distance between two points?
Open tool →MathematicsArithmetical and Geometrical Progressions
What is the last term and the sum of this arithmetical or geometrical progression?
Open tool →MathematicsPreferred Number (Renard) Series
Which preferred numbers fall between these limits in the chosen Renard series?
Open tool →GeometryStraight Lines: Intersection, Angle and Distance
Where do these two lines cross, at what angle, and how far is a point from the first line?
Open tool →MechanicsAverage Force of a Blow (Drop Hammer or Pile Driver)
What average force does this falling weight deliver when it drives the work a given distance?
Open tool →MaterialsMixture Cost and Blending (Alligation)
What does this mixture cost per kilogram, or in what proportions do two ingredients blend to a target value?
Open tool →StrengthSteel Column Safe Stress (Classic AISC Formulas)
What safe unit stress and load do the classic AISC column formulas give for this slenderness?
Open tool →FastenersRetaining Ring Thrust Capacity and Groove Edge Margin
What thrust load can this retaining ring and groove carry, and how far from the end must the groove be?
Open tool →MaintenanceISO 4406 Oil Cleanliness Code from Particle Counts
What ISO 4406 cleanliness code do these particle counts give, and does the oil meet its target?
Open tool →MaintenanceFilter Beta Ratio and Capture Efficiency
What beta ratio and capture efficiency does this filter achieve, and what will pass downstream?
Open tool →ManufacturingInverse Time Feed Rate (G93)
What inverse-time F value programs this move at the feed I want?
Open tool →ManufacturingBar Stock for Screw Machine Parts
How many parts does each bar give, and how much bar stock do I order for this quantity?
Open tool →FabricationShearing Force for Parallel and Inclined Blades
What force does it take to shear this sheet or bar, with parallel or inclined (rake) blades?
Open tool →GearsSpur Gear Pitting Resistance Power Rating (AGMA)
How much power can this spur gear pair transmit before pitting governs?
Open tool →ManufacturingSurface and Cylindrical Grinding Cycle Time
How long will this surface, traverse or plunge grinding operation take?
Open tool →FabricationPattern Size for Shrinkage and Casting Weight from Pattern
How big must the pattern be to give this casting size, and roughly what will the casting weigh?
Open tool →GearsSpur Gear Contact Diameters, Contact Ratio and LPSTC
Where does contact start on each gear, what is the contact ratio, and where is the lowest point of single tooth contact?
Open tool →ManufacturingDividing-Head Angle for Milling Clutch Teeth
At what angle must the dividing head be set to mill these saw-tooth or V-shaped clutch teeth?
Open tool →Power TransmissionSilent (Inverted-Tooth) Chain Sprocket Diameters
What pitch, outside, guide-groove and over-pin diameters does this silent chain sprocket have?
Open tool →ManufacturingSmall Cutter and Drill Stiffness and Deflection
How much stiffness do I lose by choosing a smaller or longer micro end mill or drill, and how far will it deflect?
Open tool →MaterialsStockpile Volume and Weight from Angle of Repose
How much material is in a natural pile on this circular or rectangular base?
Open tool →MaterialsLumber Board Feet and Volume
How many board feet and cubic metres are in this timber order, and what does it cost?
Open tool →FastenersWorking Strength of Bolts in Packed (Gasketed) Joints
What external load can this bolt safely carry in a packed joint after allowing for the tightening load?
Open tool →MechanicsPunch and Shear Flywheel Sizing
What motor power and flywheel rim does this punch or shear need for its energy per stroke?
Open tool →ManufacturingEquivalent Chip Thickness (ECT) and Cutting Forces
What equivalent chip thickness, removal rate, cutting force and power does this turning cut give?
Open tool →FabricationDeep Drawing Reduction Sequence
How many draws does this shell need, and what diameter should each draw produce?
Open tool →GearsPlastics Gear Power Rating
How much power can this nylon, acetal or other plastics gear transmit?
Open tool →MaterialsThermal Stress and Movement in Plastic–Metal Assemblies
What stress builds up in a plastic part restrained by metal when the temperature changes, and how much do they move relative to each other?
Open tool →FastenersSet-Screw Holding Power and Torque
How much power and torque can set screws hold on this shaft, and how many do I need?
Open tool →ManufacturingForming Tool Step Depths and Angles
What depth and angle must I grind on a flat or circular forming tool to produce these steps on the work?
Open tool →ManufacturingSpade Drilling Power and Thrust
What power and thrust does this spade drilling operation need?
Open tool →MaterialsTrue Stress, True Strain and Flow Curve
What are the nominal and true stress and strain at this point in a tensile test, and what does the flow curve predict?
Open tool →UnitsOil Viscosity Unit Conversion (cSt, cP, SUS, Reyn)
What is this oil viscosity in centistokes, centipoise, Saybolt seconds and reyns?
Open tool →ThreadsANSI Buttress Thread Basic Dimensions (7°/45°)
What are the basic dimensions of this 7°/45° buttress thread?
Open tool →ThreadsThree-Wire Measurement of Taper and Buttress Threads
What should the measurement over three wires be for this taper or buttress thread, and what pitch diameter does a reading give?
Open tool →ManufacturingMulti-Start Thread Turning Set-up
What lead, start spacing and Z shift do I program to turn this multi-start thread?
Open tool →FabricationShear Spinning Blank Thickness and Force
How thick must the blank be for this shear-spun cone, and what force and power does the roller need?
Open tool →QualityCNC Axis Positioning Accuracy and Repeatability
What positioning accuracy and repeatability does this axis have from repeated runs to target points?
Open tool →ThreadsAcme Thread Tap Drill Size
What drilled hole size suits tapping this Acme thread?
Open tool →ManufacturingNumber of Teeth for a Milling Cutter
How many teeth should this face mill or peripheral cutter have for the cut and the power available?
Open tool →ManufacturingDividing-Head Setting for Fluting Angular Cutters and Taper Reamers
At what angle do I set the dividing head to flute the teeth of this angular cutter or taper reamer?
Open tool →GearsSpur Gear Set Design Check
Will this spur gear set carry the power for bending and pitting, and what face width does it really need?
Open tool →SpringsCompression Spring Designer (Two Working Points)
What wire size, coils and free length make a compression spring that gives these two loads at these two lengths?
Open tool →StrengthShrink or Press Fit Design from Required Torque
What interference does a hub need to transmit this torque and thrust, will the hub survive it, and how hot must it be to assemble?
Open tool →FastenersBolted Joint Design Check (Preload, Separation, Proof and Fatigue)
Does this bolt size and tightening torque keep the joint closed and the bolt safe under the working load?
Open tool →ManufacturingTurning Cycle Time and Cost per Part with Tool Life
What does each turned part cost at this speed, and how much would the minimum-cost speed save?
Open tool →FabricationPress Tonnage for a Compound or Progressive Die
What total press force does this die need for blanking, piercing, bending and drawing together, and is the press big enough?
Open tool →HydraulicsHydraulic Cylinder Sizing (Bore, Rod Buckling, Flow, Power, Pipes)
What bore and rod does this cylinder need, how much flow and power does it take, and what pipe size suits it?
Open tool →StrengthShaft Design: Strength, Twist and Critical Speed
What shaft diameter satisfies strength, torsional stiffness and critical speed together for this drive?
Open tool →ManufacturingMilling Cut Planner (Speed, Thinned Feed, Power and Torque)
What spindle speed and feed should I program for this milling cut, and will the machine have the power?
Open tool →MechanicsBall-Screw Linear Axis Sizing
Can this ball screw and motor move the load at the speed and acceleration required, and how long will the screw last?
Open tool →Power TransmissionV-Belt or Flat Belt Drive Design
How many belts does this drive need, how long are they, and what load do they put on the shafts?
Open tool →Power TransmissionRoller Chain Drive Design
Will this roller chain and sprocket pair carry the power, how long is the chain, and how smooth will it run?
Open tool →Power TransmissionRolling Bearing Selection Check
Does this bearing give the life I need at the reliability I want, and is it safe statically and at speed?
Open tool →FabricationFillet Weld Joint Design and Cost
What fillet weld size does this joint need, and what will the weld metal, time and cost be?
Open tool →MechanicsCam and Spring-Loaded Follower Design
Will this cam’s follower stay in contact at speed, what spring preload does it need, and is the pressure angle acceptable?
Open tool →Power TransmissionFriction Clutch Engagement Design
What clamp force does this clutch need to start the load in time, and how much heat does each engagement make?
Open tool →MechanicsScrew Jack and Power Screw Design
What torque and lever force raise this load, will the screw self-lock, and are the threads, nut and screw strong enough?
Open tool →HydraulicsPumping System Design (Head, Power and NPSH)
What head and power does this pumping duty need, and will the pump have enough suction head?
Open tool →Power TransmissionKeyed Shaft and Hub Design
How long must the key be to carry this drive, does the hub fit it, and is the keyed shaft strong enough?
Open tool →Power TransmissionBand Brake Stopping Design
Can this band brake stop the load in the time required, what lever force does it need, and how hot does it get?
Open tool →Power TransmissionBelt Conveyor Drive Sizing
What belt pull and motor power does this belt conveyor need, and will the drive pulley grip without slipping?
Open tool →ManufacturingFixture Clamping Force and Clamp Screw Torque
How much clamping force holds this workpiece against the cutting forces, and how tight must each clamp screw be?
Open tool →MechanicsLifting Beam and Spreader Beam Check
Is this lifting beam or spreader bar strong and stiff enough for the load, and what are the sling tensions?
Open tool →StrengthBeam Sizing for Strength and Deflection
What section modulus and second moment of area does this beam need for its loads, span and deflection limit?
Open tool →PneumaticsCompressed-Air System Sizing
How big a compressor, receiver and main pipe does this plant need, and what do the leaks cost?
Open tool →MechanicsVibration Isolator Selection
What mount stiffness and static deflection isolate this machine at its running speed, and how well do my chosen mounts work?
Open tool →Power TransmissionMotor and Gearbox Selection
What gear ratio, motor rating and starting torque does this load need, and is the inertia match reasonable?
Open tool →GearsGear Train Tooth Number Planner
What tooth numbers give this reduction ratio in one or two stages, and how close can I get?
Open tool →Power TransmissionGearbox or Hydraulic Unit Heat Balance and Cooling
How hot will this gearbox or hydraulic power unit run, and does it need a cooler?
Open tool →ManufacturingCutting Tool Deflection and Depth-of-Cut Limit
How far will this end mill or boring bar deflect under the cut, and what depth keeps it within tolerance?
Open tool →FabricationSheet-Metal Bracket: Flat Blank, Nesting, Bending Force and Cost
What flat blank, sheet yield, bending force and cost per part does this bent sheet-metal bracket have?
Open tool →FastenersTapped Hole Design (Drill, Engagement and Depth)
What drill, length of engagement and tapping depth does this tapped hole need so the thread does not strip?
Open tool →PneumaticsPneumatic Cylinder Sizing, Air Use and Running Cost
What bore does this air cylinder need, how much air does it use, and what does that air cost?
Open tool →SpringsDisc Spring Stack Design
How many disc springs in series and in parallel give this force over this stroke?
Open tool →ManufacturingDrilling Cycle Planner (Speed, Feed, Thrust, Power and Time)
What speed and feed do I run this drill at, will the machine and workholding take the thrust, and how long will the holes take?
Open tool →HydraulicsHydraulic Motor Drive Sizing
What motor displacement, flow and pump power does this hydraulic drive need for the load torque and speed?
Open tool →ManufacturingLathe Chuck Grip Force and Speed Limit
How much grip does the chuck need to hold this cut, how much is lost at speed, and how fast can it safely run?
Open tool →ManufacturingMachine Coolant System Sizing
How much coolant flow, tank volume and pump power does this machine need?
Open tool →MechanicsRotary Index Table Drive Sizing
What torque and motor does this rotary index table need to index in time, and what holding torque during machining?
Open tool →MechanicsRack and Pinion Axis Sizing
What pinion torque, motor torque and gear ratio does this rack-and-pinion axis need, and are the teeth strong enough?
Open tool →Power TransmissionHoist Drive Sizing (Rope, Drum, Gearbox, Motor and Brake)
What rope pull, drum speed, gear ratio, motor and brake does this hoist need?
Open tool →MaterialsHeat-Treatment Furnace Load Plan (Time, Energy, Cost)
How long will this load take to heat, how much energy will the cycle use, and what does it cost per kilogram?
Open tool →FabricationMechanical (Crank) Press Capacity Above Bottom
How much force can this crank press deliver at the height where my operation happens, and is it enough?
Open tool →HydraulicsPipe Thermal Expansion, Anchor Force and Expansion Loop
How much will this pipe run grow when hot, what force would fully restrained anchors see, and how long must the loop legs be?
Open tool →GearsGear Backlash at Operating Temperature
How much backlash will this gear pair have when the housing and gears warm up, and could it jam?
Open tool →HydraulicsPump Operating Point on the System Curve
Where will this centrifugal pump actually run on my system, how efficiently, and what speed gives the flow I want?
Open tool →Power TransmissionFan Duty, Fan Laws and Belt Drive
What power does this fan need, how fast must it run for more air, and what pulleys and motor does that take?
Open tool →MechanicsMachine Foundation Block Sizing
How big a concrete block does this machine need, will the soil carry it, and is the block clear of resonance?
Open tool →QualityMeasurement Error from Part and Gauge Temperature
How far off is my measurement because the part and gauge are not at 20 °C, and what is the true size?
Open tool →StrengthPressure Vessel Shell and Head Thickness Comparison
What wall thickness does this vessel shell need, and how do hemispherical, ellipsoidal and torispherical heads compare?
Open tool →QualityFixture Locating Error from Pin and Hole Clearances
How far can a part shift and rotate on its locating pins, and does that fit the feature tolerance?
Open tool →FastenersGasketed Flange Bolt Load Check
Do these flange bolts give enough load to seat the gasket and hold the pressure, and what torque do they need?
Open tool →Power TransmissionChain Conveyor Pull and Drive Sizing
What chain pull, sprocket torque and motor power does this chain conveyor need, and is the chain strong enough?
Open tool →Power TransmissionRail Travel Drive Sizing (Crane, Trolley or Transfer Car)
What force and motor does this wheeled carriage need to travel and accelerate on rails, and will the driven wheels slip?
Open tool →Power TransmissionBearing Fit and Operating Internal Clearance
How much radial internal clearance will this bearing have once it is pressed on and running warm, and could it go into preload?
Open tool →Power TransmissionOverhung (Radial) Load on a Gearbox or Motor Shaft
What radial load does this pulley, sprocket or gear put on the gearbox shaft, and is it within the allowable at its position?
Open tool →ManufacturingInjection Moulding Clamp, Shot, Cooling and Cycle Estimate
What clamp force and shot size does this mould need, how long will it take to cool, and how many parts per hour will it make?
Open tool →Power TransmissionBearing and Gear Losses with Circulating Oil Flow
How much heat do these bearings and gears make, and how much circulating oil carries it away?
Open tool →FabricationPress Brake Set-up: Die, Radius, Flange and Tonnage
Which V-die should I use for this bend, what inside radius and minimum flange will it give, and is the press brake big enough?
Open tool →Power TransmissionGearbox Selection Check (Service Factor, Thermal and Torque)
Is this catalogue gearbox right for my motor and load once the service factor and thermal rating are applied?
Open tool →FastenersRiveted Joint Design (Balanced Pitch and Rivet Count)
What rivet pitch balances plate and rivet strength, how efficient is the joint, and how many rivets carry the load?
Open tool →StrengthVertical Storage Tank Shell Thickness by Course
How thick must each shell course of this vertical liquid storage tank be, and what does the shell weigh?
Open tool →ManufacturingMilling Time and Cost per Part with Tool Life
How long does this milling operation take and what does it cost per part, including tool wear and set-up?
Open tool →No matching tool yet. Try another term or category.
KEVOS® WORKOS
Tool
WORKOS tools are screening and decision-support utilities. Verify important financial, engineering, safety, legal or operational decisions using appropriate professional standards and your organisation’s approved data.
