GA63B 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 sheets: CUCNPFB Spec Sheet

web with lightening holes

Adapters eliminate the need for complete shaft replacement

• Dependable

Diametral Pitch: 8

1/4"Bore= #6-32 setscrew

Click here for spec sheet: UCFB Spec Sheet

Click here for spec sheet: HUCFL Spec Sheet

Allows you room to re-bore the ID without damaging the clamp screws

Click here for spec sheets: SUCNPTRS Spec Sheet

Two-Piece Housing has rust-proof plated finish

One-Piece Housing has rust-proof plated finish