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All Boston Gear change gears are manufactured with a double key to accept the compound steel bushings that connect two gears together
AMBIENT TEMPERATURE — 180°F
KWY/Setscrew/Other: 1/8"Bore= #2-56 setscrew
Good up to 225ºF maximum
Click here for spec sheet: SB Spec Sheet
NL12B Steel Spur Gear 90mm ID 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
