GD49B 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

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They are available in plastic

Click here for spec sheet: SALP Spec Sheet

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non-self-centering design for use in counter-bored components

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But why settle for a knock-off when you can have the original - from Boston Gear

No control equipment is required

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Click here for spec sheets: HUCNPT Spec Sheet

Number of Threads: Quad Thread