quieter operation
3/16"Bore= #4-40 setscrew
Click here for spec sheet: SNASP Spec Sheet
Because the efficiency of a worm gear drive depends on the lead angle and number of starts on the worm
Wiring diagram laser-marked on housing
YH20 Steel Spur Gear 20 Teeth quieter operationBoston 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