GB127A 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

Recommended Lubrication: Klubersynth UH1 6-460

Click here for spec sheet: SBPL Spec Sheet

Base Mounting Attachment: No Base

When the magnet coil is de-energized

Output Bore/Shaft Diameter: 1

Click here for spec sheet: ER Spec Sheet

1/4"Bore= #6-32 setscrew

Greater load capacity compared to SUCSFCS

All Boston Gear change gears are manufactured with a double key to accept the compound steel bushings that connect two gears together

and most come with a selection of bore diameters

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

the SNASFB has an eccentric locking bearing insert