Because the efficiency of a worm gear drive depends on the lead angle and number of starts on the worm
Click here for spec sheets: CUCNPHA Spec Sheet
Click here for spec sheets: SUC Spec Sheet
glass-filled bearings are self-lubricating and offer a low coefficient of friction
G263 Brass Spur Gear 1-1/2" Plain Bore Because the efficiency of aBoston 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