GD66A 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

Documentation

Diametral Pitch: 20

They are available in plastic

Click here for spec sheets: HUCNPF Spec Sheet

non-metallic

Friction discs are then released and free to rotate with the hub and motor shaft

Click here for spec sheet: SUCNPP Spec Sheet

and cast iron and are manufactured in a variety of styles

Click here for spec sheet: SAMS Spec Sheet

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

No control equipment is required

Click here for spec sheet: UCFC Spec Sheet