GF85A 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

Click here for spec sheets: CUCTF Spec Sheet

Click here for spec sheet: BUCTP Spec Sheet

AMBIENT TEMPERATURE — 180°F

Click here for spec sheets: CUCNPPA Spec Sheet

Interchangeable with most metal units

1/4"Bore= #6-32 setscrew

Miter Gears are similar to Bevel Gears except Miter Gears are used for 1:1 ratios

Click here for spec sheets: CUCNPTRS Spec Sheet

Spring-lid oil cap can be positioned 4 ways

Click here for spec sheets: CUCNPFL Spec Sheet

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