Stock Drive Products & Sterling Instrument - SDP/SI 72 DP, 68 Teeth, 20° Pressure Angle, Anti-Backlash Spur Gear S1M54A-F072S068

The S1M54A-F072S068 is a 72 pitch anti-backlash spur gear with 68 teeth and a 0.9444 inch pitch diameter, featuring a 0.972 inch outside diameter and a 0.2498 inch bore. The gear is made from 2024-T4 or -T351 aluminum alloy, anodized before cutting, and mounted on a 303 stainless steel Fairloc hub. It has a 20° pressure angle and a 0.104 inch face width. The design requires a shaft clearance fit of 0.0001 to 0.0008 inch. The hub and spring components are 303 and 302 stainless steel respectively, with the spring being torsion type in spring temper.