All Boston Gear change gears are manufactured with a double key to accept the compound steel bushings that connect two gears together
the CUCSFL has a Hard Chrome bearing insert and a Stainless Steel housing
a spring loaded pressure plate (magnet armature) presses against the rotating discs
While 20° PA is generally recognized as having a higher load-carrying capacity
YD15-5/8 Steel Spur Gear 1/2" Hub All Boston Gear change gearsBoston Gear spur gears are designed to transmit motion and power between parallel shafts. The different styles offered include spur, gear rack, pinion wire, stem pinions, and internal gears, and most come with a selection of bore diameters, keyways, and setscrews to accommodate a wide variety of application requirements. They are available in plastic, non metallic, brass, steel, and cast iron and are manufactured in a variety of styles, including