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14 1/2° PA gears are used extensively because of lower backlash and smoother
web with lightening holes
Clamping coupling portion will not mar the shaft
Specifications
Click here for spec sheets: SUCSP Spec Sheet
GB46B Cast Iron Change Gear UHMW Housing 14 1/2° PA gears areBoston 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
