GB97A 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

Click here for spec sheet: CUCNPP Spec Sheet

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the CUCSFL has a Hard Chrome bearing insert and a Stainless Steel housing

the ratio should be kept low

Click here for spec sheets: CUCNPHA Spec Sheet

Click here for spec sheets: HUCNPFL Spec Sheet

Click here for spec sheets: SUCSFL Spec Sheet

full-depth system gears

Extra thick non-conductive rubber liner corrects misalignment up to 2° while reducing noise & vibration

Click here for spec sheet: CUCTP Spec Sheet

Be sure to ask for the Boston Gear compound steel bushings designed specifically for use with these gears

Bearing insert with 2 set screws has longer inner race for added load support