Because the efficiency of a worm gear drive depends on the lead angle and number of starts on the worm
They also offer excellent load and wear characteristics for continuous non-lubricated service
Self-lubricating bearings resist corrosions
Click here for spec sheet: SARFB Spec Sheet
YH12-3/4 Steel Spur Gear 3/8" 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