GH79A 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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Just ask your CSR which is best for you

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non-metallic

Note: This is the spec sheet for the set screw Locking version

B-Type Seals

the SNATFB has an eccentric locking bearing insert

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worms and worm gears operating together must have the same diametrical pitch and threads

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These unique two-piece rigid clamping couplings come with an undersized ID