GA78B Cast Iron Change Gear
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Product Image
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Product Attributes:
- 14-1/2 Degree Pressure Angle
- 20 DP
- 78 Teeth
- Cast Iron Gears
- Change Gears
- Open Gearing
Boston 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 nearly infinite number of ratio possibilities. Be sure to ask for the Boston Gear compound steel bushings designed specifically for use with these gears.
Specifications
Material: Cast Iron
Diametral Pitch: 20
KWY/Setscrew/Other: W/ Double KWY Only