GB98A 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

Tolerates -5° to 220° F

• Instant Magnetic Release

Product Note: BOStonE F-1 bearings may be green

Double-taper

Click here for spec sheets: SUCSTX Spec Sheet

Click here for spec sheet: SB Spec Sheet

Click here for spec sheet: SAFL Spec Sheet

oil resistant rubber liner which corrects up to 2° misalignment while reducing vibration & noise

Click here for spec sheet: SBF Spec Sheet

Release is instantaneous

the SNASFB has an eccentric locking bearing insert

see SNA vs SUC pages for bearing insert dimensions)