GB50B 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

Documentation

Click here for spec sheets: Clamp-Lok Catalog

Click here for spec sheet: SALF Spec Sheet

and internal gears

B-Type Seals

Bronze Bearing Type

Keyway: No KWY or Setscrew

Does not mar the shaft

Acetal Copolymer collars will not rust or corrode

These unique two-piece rigid clamping couplings come with an undersized ID

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

Straight tooth Miter Gears are cut with a generated “Coniflex” tooth form providing increased life and quieter operating conditions