NBR10 Steel Stem PinionBoston 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

Center Distance: 2

Click here for spec sheet: SNASP Spec Sheet

Type: Cylindrical

Input Style: No Flange (projecting shaft)

Collars include stainless steel screws

Spiral tooth Miter Gears are better suited for higher speeds and high torque applications

When used with Boston Gear worms

Click here for spec sheet: SB Spec Sheet

Click here for spec sheets: SUCSFLX Spec Sheet

white or any other color

A shifting of the valve changes direction–even when the air motor is running full open

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