GA75B 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

Note: This is the spec sheet for the version with cast iron housing and mild steel bearing insert

allowing them to spin on an intermediate shaft

Click here for spec sheet: SBLF-H4 Spec Sheet

Splines in crease disc life because the many con tact points between hub and discs reduce the concentration of stresses encountered with non-splined hubs having only a few contact points

Spring-lid oil cap can be positioned 4 ways

No control equipment is required

Click here for spec sheets: SSBSRFB Spec Sheet

Click here for spec sheet: SBRFB Spec Sheet

Click here for spec sheet: HUCT Spec Sheet

Heavy-duty Shrink Disc external clamping device

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

Click here for spec sheets: BUCNPTRS Spec Sheet