GH48A 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

web with lightening holes

Click here for spec sheet: HUCPA Spec Sheet

Click here for spec sheet: SBFL Spec Sheet

Click here for spec sheet: ER Spec Sheet

The spline design virtually elimi nates back lash which is a delayed action effect caused by excessive clearances between hub and discs

Note: SNA bearings not in catalog

Click here for spec sheets: SUCSTX Spec Sheet

Click here for spec sheets: SUCTPA Spec Sheet

the SNASTRS has an eccentric locking bearing insert

Click here for spec sheets: SUCSFLX Spec Sheet

Housing is crimped together at bolt holes

Click here for spec sheets: SSBSLF Spec Sheet