GB57B 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

Provides greater axial holding power than set screw collars

Click here for spec sheet: CUCNPP Spec Sheet

Click here for spec sheet: HUCNPP Spec Sheet

and web with spokes

Just ask your CSR which is best for you

Diametral Pitch: 8

Click here for spec sheets: BUCNPFCS Spec Sheet

No control equipment is required

self-centering design without mounting flange for use in through-bored components

Our standard 700 Series - the heart of Boston Gear's speed reducer product line - has been serving many industries reliably for over 40 years

Click here for spec sheet: HUC Spec Sheet

Click here for spec sheets: CUC Spec Sheet