GB58B 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

Mounted component moves axially during installation

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• One Moving Part

in one tooth increments

Product Note: BOStonE F-1 bearings may be green

Click here for spec sheet: NAP Spec Sheet

KWY/Setscrew/Other: 1/8"Bore= #2-56 setscrew

Click here for spec sheets: HUCNPFL Spec Sheet

Click here for spec sheets: SUCSFL Spec Sheet

Click here for spec sheets: SUCSTX Spec Sheet

quieter operation

BLIND BORE Bearings are available on special order — minimum quantities will apply