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  • Dimensions & Tolerances for Flat Keys & Keyways per JIS B 1301:1996
    When designing a drive system, the use of keys and keyways to transmit torque from the drive shaft to the gear/pulley/sprocket/coupling is common. Enclosed is a table detailing the standard metric keys and keyway sizes and their corresponding tolerances.
  • Sorting out shaft connections
    and hub attempt to shear the key. Loads applied by the shaft and hub keyways can compress and permanently deform the key. Manufacturing tolerances on key and keyway contribute to backlash. Knowing the advantages and disadvantages of keyless and keyed shaft connections is vital when connecting
  • Spur Gear Terms
    Spur gears have straight cut teeth. They are designed to operate on parallel shafts to transmit motion and power. Change gears are primarily used in machinery where gear ratios are frequently changed. Change gears are commonly manufactured with double keyways to accept compound bushings and allow
  • How to Use Inertia Figures for Gearbox Selection
    Overhung & thrust loads; Gearbox materials; Gearbox application; Grease Filling; Technical Data; Keyway sizes & tapping drill sizes; Inertia & use of inertia figures to aid selection
  • Pioneering CNC Grinding Trends: Peel Grinding (.doc)
    eliminates the need for conventional work drivers allowing grinding of complex shafts, keyways or slots in one setup. Part changeover can be accomplished in seconds.
  • The Basics of Roller Chain Sprockets
    Think of all your chain-driven machinery. Now consider the sprockets driving all those chains. Often subjected to temperature extremes, corrosive environments, harsh washdowns and/or impact loads that destroy keyways and shear teeth, sprockets tend to be ignored until a breakdown. Suddenly, youâ re
  • Using a Stroboscope to Measure RPM
    of a shaft). Second, the object should have some unique part on it, like a bolt, keyway or imperfection to use as a reference point. If the object being viewed is perfectly symmetrical, then the user needs to mark the object with a piece of tape or paint in a single location only, to be used
  • How to Select a Strobe
    Best results for measuring RPM is for the user to fix his eyes on a single reference target a bolt head,. keyway, scratch on the shaft or to place a reference mark such as tape, paint or chalk on a symmetrical. object. When the user rotates the flash rate control knob "Very Slowly", the object
  • Tire Assemblies
    Problem: The tire assembly needs to be orientated so that the hub centerline is parallel to the centerline of the axle. There is a close fit between the hub ID and axle OD. The tire assembly must be rotated to align the hub key with the axle keyway. Thus, the tire assembly is lifted, pitched
  • Planetary reducers eliminate machining step to keep costs down
    A face-mount (MM7300SA) model in the NEMA-34 configuration (threaded holes in the reducer face and a 0.75-in.diameter, 1.5-in.-long shaft with a standard 0.1875-in. keyway). Other options include an offset shaft, mounting from the reducer side via through holes in the reducer flange, base mounting

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