GD43B Cast Iron 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

• Flange/Foot Mounting

Provides torque transmission & alignment

Click here for spec sheet: UCX Spec Sheet

Click here for spec sheets: SUCSFX Spec Sheet

self-centering design for use in through-bored components with high torque and/or bending requirements

Click here for spec sheet: SAPL Spec Sheet

the CUCSFL has a Hard Chrome bearing insert and a Stainless Steel housing

and cast iron to suit your application’s requirements

Click here for spec sheets: SUCNPFB Spec Sheet

Click here for spec sheets: SSBSRFB Spec Sheet

Be sure to ask for the Boston Gear compound steel bushings designed specifically for use with these gears

see SNA vs SUC pages for bearing insert dimensions)