NBR6 BOS

Boston Gear® stem pinions feature small numbers of teeth that are cut integral to the steel shaft. Using a special, enlarged pitch diameter minimizes the undercutting of the teeth. When run with standard stock spur gears, stem pinions increase the ratios normally found in spur gear drives. Stem pinions are not intended to be operated with each other, with internal gears or with eleven tooth spur gears. They will, however, run satisfactorily with all other standard 14.5 deg PA spur gears.

Boston Gear® Stem Pinion, 1/2 in Stem Diameter, 3-1/8 in Stem Length, 6 Teeth, 16 Diametral Pitch, 0.419 in Pitch Diameter, 1-3/8 in Face Width, 5 in Overall Length, 14.5 deg Pressure Angle, Steel