GA115B 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

• Full Torque Stop

Click here for spec sheets: BUCNPT Spec Sheet

and web with spokes

• Dependable

Click here for spec sheet: SBFL Spec Sheet

These double C-Face Brakes are direct acting with only one moving part

a spring loaded pressure plate (magnet armature) presses against the rotating discs

Click here for spec sheets: SUCNPF Spec Sheet

Click here for spec sheets: SUCX Spec Sheet

Click here for spec sheet: SA Spec Sheet

• Superior Thermal Capacity

see SNA vs SUC pages for bearing insert dimensions)