NAR8 Steel Stem Pinion 20 Degree Pressure Angle Boston Gear spur gears are

Boston Gear spur gears are designed to transmit motion and power between parallel shafts

Because Boston Air Motors go to work with air-cushioned smoothness they cut stress on your equipment

and finished bores in both steel (J) and stainless steel (JS)

full-depth system gears

NAR8 Steel Stem Pinion 20 Degree Pressure Angle Boston Gear spur gears areBoston Gears 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. Please note: Stem pinions are not intended to be operated with each other, with internal gears, or with eleven tooth spur gears. They will, however, run