GB49B 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

Click here for spec sheet: NANF Spec Sheet

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

Click here for spec sheet: UCPX Spec Sheet

Click here for spec sheet: UCFX Spec Sheet

Reduction Type: Single Reduction Right Angle

Its proven modular design has set the industry standard for performance and is the most imitated product in today's worm gear speed reducer market

BLIND BORE Bearings are available on special order — minimum quantities will apply

depending upon the diametrical pitch

Click here for spec sheet: SBLF Spec Sheet

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

Click here for spec sheets: SUCSP Spec Sheet

the SNATPA has an eccentric locking bearing insert