GD73A 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

self-centering design with mounting flange for use in through-bored components with smaller pitch/outside diameters

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

The different styles offered include spur

Click here for spec sheets: CUCNPTRS Spec Sheet

Click here for spec sheets: HUCNPFL Spec Sheet

Drop-in replacement for commonly used hex nut keyless bushings

Click here for spec sheets: SUCTPA Spec Sheet

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

Medium Duty

Easily installed where major disassembly would otherwise be required

Acetal Copolymer collars will not rust or corrode

3/16"Bore= #4-40 setscrew