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• Superior Disc Life
Diametral Pitch: 20
Click here for spec sheets: SUCNPHA Spec Sheet
self-centering design for use in through-bored components with high torque and/or bending requirements
GB123A Cast Iron Change Gear 56C • Superior Disc LifeBoston 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
