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• Direct Acting
Click here for spec sheet: CUCNPP Spec Sheet
Boston Gear offers worm gears manufactured from a variety of materials
and setscrews to accommodate a wide variety of application requirements
• Superior Disc Life
GB74B Cast Iron Change Gear 42mm ID • Direct ActingBoston 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
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