GB77B 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

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

Click here for spec sheet: HUCNPP Spec Sheet

Click here for spec sheet: SALF-H4 Spec Sheet

Click here for spec sheet: UCHA Spec Sheet

Click here for spec sheet: UC Spec Sheet

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

Pressure Angle: 14-1/2 Degree Pressure Angle

Note: This is the spec sheet for the All Stainless version

Miter Gears are similar to Bevel Gears except Miter Gears are used for 1:1 ratios

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

depending upon the diametrical pitch

and most come with a selection of bore diameters