Allows you room to re-bore the ID without damaging the clamp screws
Bost-Bronz® has a self-contained oil supply (approximately 20% by volume) which provides a uniform protective film over the entire bearing surface
The spline design virtually elimi nates back lash which is a delayed action effect caused by excessive clearances between hub and discs
Click here for spec sheet: SB Spec Sheet
Y24120 Brass Spur Gear 90 Teeth Allows you room to re-boreBoston 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