GH55A 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

• Flange/Foot Mounting

in one tooth increments

B-Type Seals

the SNATFB has an eccentric locking bearing insert

Spring-lid oil cap can be positioned 4 ways

Effective on both hard and soft shafts

To run properly

Click here for spec sheets: UCFC Spec Sheet

Center Distance: 3

Click here for spec sheets: SUCSFB Spec Sheet

Click here for spec sheet: CSA Spec Sheet

Bearing insert is encased in non-conductive