GB65B Cast Iron Change Gear 0.8125" ID Pilot bore can be opened

Pilot bore can be opened to the nominal ID reflected in the part number

Click here for spec sheets: HUCNPF Spec Sheet

Friction force stops and holds the motor shaft

Click here for spec sheet: SAMS Spec Sheet

GB65B Cast Iron Change Gear 0.8125" ID Pilot bore can be openedBoston 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