GF90A 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

Diametral Pitch: 20

They are spring set and electro-magnetically released

Click here for spec sheets: Clamp-Lok Catalog

Max V Value: 300 fpm

Bronze Bearing Type

Recessed screw head provides safety with an outside surface free of major projections

Collars include stainless steel screws

Can be mounted vertically or horizontally

a spring loaded pressure plate (magnet armature) presses against the rotating discs

Click here for spec sheets: CUCNPF Spec Sheet

Bost-Bronz® bearings are also highly versatile and can be used for production and replacement requirements throughout general industry

Click here for spec sheets: SSB Spec Sheet