GH69A Cast Iron Change Gear 4-3/16" ID see SNA vs SUC pages

see SNA vs SUC pages for bearing insert dimensions)

For applications involving slow rotating or linear motion

the SNASTRS has an eccentric locking bearing insert

While 20° PA is generally recognized as having a higher load-carrying capacity

Drop-in replacement for commonly used hex nut keyless bushings

GH69A Cast Iron Change Gear 4-3/16" ID see SNA vs SUC pagesBoston 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