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Boston Gear change gears are used primarily on machine tools to provide different cutting speeds while using a constant speed input
stem pinions
Housing is crimped together at bolt holes
Click here for spec sheets: SUCSPA Spec Sheet
They are spring set and electro-magnetically released
G692 Brass Internal Spur Gear 1.8125" OD Boston Gear change gears areBoston Gears internal gears are spur gears turned "inside out." In other words, the teeth are cut into the inside diameter while the outside diameter is kept smooth. This design allows for the driving pinion to rotate internal to the gear, which, in turn, allows for clean operation. Intended for light duty applications, these gears are available only in brass. When choosing a mating spur gear, always remember that the difference in the number of teeth
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