GA109B 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

Boston Miter Gears are designed for the transmission of motion and power between two intersecting shafts positioned at a right angle

and web with spokes

Keyway: No KWY or Setscrew

Double-taper

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

Click here for spec sheet: SBRFB Spec Sheet

Two-Piece Housing has rust-proof plated finish

Click here for spec sheet: HUCT Spec Sheet

Ball Bearing Type

Acetal Copolymer collars will not rust or corrode

self-centering design without mounting flange for use in through-bored components

Click here for spec sheets: SUCNPPA Spec Sheet