GB72B 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

A manual release is also provided

Material: Cast Iron

in one tooth increments

But why settle for a knock-off when you can have the original - from Boston Gear

Note: SNA bearings not in catalog

the brake will immediately set and hold

Click here for spec sheet: SAFL Spec Sheet

Allows you room to re-bore the ID without damaging the clamp screws

The change gears we stock range from 20-tooth through 128-tooth gears

Click here for spec sheets: SUCNPFL Spec Sheet

Housing is crimped together at bolt holes

the SNASFB has an eccentric locking bearing insert