GD104A Cast Iron Change Gear 180mm ID Porous flanged bronze bearing is

Porous flanged bronze bearing is press-fit in sturdy zinc die cast sphere with felt strip for lubrication

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the CUCSHA has a Hard Chrome bearing insert and a Stainless Steel housing

14 1/2° PA gears are used extensively because of lower backlash and smoother

GD104A Cast Iron Change Gear 180mm ID Porous flanged bronze bearing isBoston 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