GF57A Cast Iron Change Gear 5/16" Finished Bore For applications involving slow rotating

For applications involving slow rotating or linear motion

Straight/Spiral Tooth: Straight Tooth

the SNASFB has an eccentric locking bearing insert

Adapters eliminate the need for complete shaft replacement

Catalog Product Section

GF57A Cast Iron Change Gear 5/16" Finished Bore For applications involving slow rotatingBoston 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