GB43B 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 Gear change gears are used primarily on machine tools to provide different cutting speeds while using a constant speed input

Tolerates -5° to 220° F

Center Distance: 2

Click here for spec sheet: SNASP Spec Sheet

Click here for spec sheet: HUCPA Spec Sheet

KWY/Setscrew/Other: No KWY or Setscrew

and web with spokes

Design fully engages the thread for secure locking

Traditional cost effective rigid coupling design

Click here for spec sheet: SARFB Spec Sheet

Click here for spec sheet: CSB Spec Sheet

Bearing insert is encased in non-conductive