GF21 Steel Change GearBoston 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

Reduction Type: Double Reduction Right Angle (WC/WD)

Heavy guage one-piece housing has rust proof plated finish

Output Type: F Standard Quill Flange

Traditional cost effective rigid coupling design provides torque transmission and alignment

We’ve designed the product line to include three different series in order to meet a broader array of application requirements

Bronze Bearing Type

Click here for spec sheets: CUCNPHA Spec Sheet

Click here for spec sheets: SNATFL Spec Sheet

Spiral tooth Miter Gears are better suited for higher speeds and high torque applications

stem pinions

Click here for spec sheet: SAFL Spec Sheet

Bearing insert with 2 set screws has longer inner race for added load support