Boston Gear LSA103Y-R Spiral Miter Gear Three Quarter Inch Bore

Boston Gear LSA103Y-R is a right-hand spiral miter gear designed for smooth, high-torque power transfer in compact gear trains. It uses 20 teeth at a 10 diametral pitch, giving a 2.0 in pitch diameter and a 1:1 ratio, with a 20° pressure angle and a 35° spiral angle to optimize load distribution and quiet operation. The spiral tooth form provides higher speed and torque-handling capabilities, and the Coniflex tooth form further enhances life and smoothness. The gear features a finished 3/4 in bore with a keyway, a hub diameter of 1.62 in and a hub projection of 0.78 in, and it uses a hub with a set screw for secure mounting. Overall dimensions include an outside diameter of 2.13 in and a width of 1.364 in, with a mounting distance of 2.0 in. Made from steel and with unhardened teeth, the LSA103Y-R is geared for durable bevel transmission in applications where compact center-to-center spacing is essential, such as machine tools and automated equipment.