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Ships within 48 hours · Estimated delivery Aug 15 - Aug 20
When used with Boston Gear worms
They have proven to be efficient under heavy loads at moderate speeds
Pressure Angle: 20 Degrees
Click here for spec sheet: SBF Spec Sheet
Note: This is the spec sheet for the set screw Locking version
GB85A Cast Iron Change Gear 43 Teeth When used with Boston 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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