GD47B 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

Diametral Pitch: 20

Pre-Lubricated: No

Click here for spec sheets: Clamp-Lok Catalog

Click here for spec sheet: UCFCX Spec Sheet

non-self-centering design for use in counter-bored components

Click here for spec sheets: SUCSFCS Spec Sheet

Bronze Bearing Type

the SNATFB has an eccentric locking bearing insert

and cast iron to suit your application’s requirements

Center Distance: 1

Engineering Data

and most come with a selection of bore diameters