YF50A Steel Spur Gear 7/8" Bore They are spring set and

They are spring set and electro-magnetically released

Recessed screw head provides safety with an outside surface free of major projections

No-shock starts

Input Shaft Size: 1

YF50A Steel Spur Gear 7/8" Bore They are spring set andBoston 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