4301 Series Brass, MOD 0.8, D-Bore, Set Screw Pinion Gear (6mm D-Bore, 15 Tooth)

Competition eligibility

Legal for FIRST Tech Challenge (FTC) and FIRST Robotics Competition (FRC). Eligibility is set by each season's game manual — check the current rules before you compete.

If you’re using a motor with a 6mm D-shaft as an output, or you have built your project using 6mm D-shafts as the axles, these D-bore gears match the shaft profile in order to create a positive drive between the shaft and the gear.This MOD 0.8 pinion gear, while aesthetically unique compared to the larger pinion gears, will operate the same. Due to the small overall diameter, the set screw hole has been machined through the teeth to maximize the number of threads engaged with the set screw. While this gear is compatible with any MOD 0.8 gear, it’s most common partner is a 105 tooth hub gear. This combo will create a 7:1 ratio, underdrive or overdrive depending on whether you’re set out to increase the speed or maximize torque.

Pressure Angle 20 Degree

Technical drawing