GD74A Cast Iron Change Gear 42mm ID Pressure Angle: 20 Degrees

Pressure Angle: 20 Degrees

Input Style: F Standard Quill Flange

Click here for spec sheet: UCFB Spec Sheet

Click here for spec sheets: BUCNPPA Spec Sheet

stem pinions

GD74A Cast Iron Change Gear 42mm 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