GB110A 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

Tolerates -5° to 220° F

All Stainless Steel

They are also the smoothest

high impact and abrasion

KWY/Setscrew/Other: 1/8"Bore= #2-56 setscrew

Includes 2 set screws

Spiral tooth Miter Gears are better suited for higher speeds and high torque applications

the SNASTRS has an eccentric locking bearing insert

Click here for spec sheets: SUCSPA Spec Sheet

stem pinions

Click here for spec sheet: UCT Spec Sheet

Note: Because the efficiency of a worm gear drive depends on the lead angle and number of starts on the worm