HB618R Bronze Helical Gear 3.43" ID These specially designed collars fit

These specially designed collars fit over rail assemblies on precision shafting

Click here for spec sheet: CSB Spec Sheet

The spline design virtually elimi nates back lash which is a delayed action effect caused by excessive clearances between hub and discs

Bearing insert with 2 set screws has longer inner race for added load support

HB618R Bronze Helical Gear 3.43" ID These specially designed collars fitBoston Gears stock helical gears are manufactured in both right and left handed configurations with an industry standard 45 helix angle to transmit motion and power between non intersecting shafts that are parallel or at 90 to each other. For parallel shaft operation, helical gears with opposite hand helix angles are required. For shafts at 90, a same hand helix angles must be used. For parallel shaft applications, the overlapping tooth contact of our