GH69A Cast Iron Change Gear 4-3/16" ID Extra thick non-conductive rubber liner

Extra thick non-conductive rubber liner corrects misalignment up to 2° while reducing noise & vibration

the SNASTRS has an eccentric locking bearing insert

Drop-in replacement for commonly used hex nut keyless bushings

For applications involving slow rotating or linear motion

see SNA vs SUC pages for bearing insert dimensions)

GH69A Cast Iron Change Gear 4-3/16" ID Extra thick non-conductive rubber linerBoston 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