GB118A 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

Brake coil leads connect directly to motor leads so that power is simultaneously supplied to both brake and motor

quietest form of gearing when properly applied

If power fails

Includes 2 set screws

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

All Boston Gear change gears are manufactured with a double key to accept the compound steel bushings that connect two gears together

Boston Gear’s worm gears provide effective power transmission in applications requiring high-ratio speed reduction in a limited space using right angle (90°)

Click here for spec sheets: BUCNPHA Spec Sheet

Acetal Copolymer collars will not rust or corrode

Click here for spec sheets: SUCSP Spec Sheet

Number of Threads: Quad Thread

• Double C-Face