GD31 Steel Change Gear 2-3/4" Diameter 3/16"Bore= #4-40 setscrew

3/16"Bore= #4-40 setscrew

Click here for spec sheets: CUCNPFCS Spec Sheet

Product Note: BOStonE F-1 bearings may be green

Recommended Lubrication: Klubersynth UH1 6-460

GD31 Steel Change Gear 2-3/4" Diameter 3/16"Bore= #4-40 setscrewBoston 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