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Ships within 48 hours · Estimated delivery Sep 1 - Sep 6
Pressure Angle: 20 Degrees
Boston Gear manufactures both 14 1/2° and 20° PA
self-centering design for use in through-bored components with high torque and/or bending requirements
Friction discs rotate with the motor shaft and are free to move axially on the hub
BLIND BORE Bearings are available on special order — minimum quantities will apply
GA56B Cast Iron Change Gear 3.5" ID Pressure Angle: 20 DegreesBoston Gear change gears are used primarily on machine tools to provide different cutting speeds while using a constant speed input. All Boston Gear change gears are manufactured with a double key to accept the compound steel bushings that connect two gears together, allowing them to spin on an intermediate shaft. The change gears we stock range from 20 tooth through 128 tooth gears, in one tooth increments, depending upon the diametrical pitch, for a
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