NFR5 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

Click here for spec sheet: UCFCS Spec Sheet

Click here for spec sheet: NAT Spec Sheet

BostonE® F-1 bearings are machined from extruded rods and held to close tolerances

We’ve designed the product line to include three different series in order to meet a broader array of application requirements

Straight/Spiral Tooth: Straight Tooth

Boston Gear’s precision-machined J and JS Series universal joints

heavy-duty gear drives are built to simplify maintenance and provide consistently reliable operation

Click here for spec sheets: CUCNPFCS Spec Sheet

Click here for spec sheet: SAFL Spec Sheet

Click here for spec sheets: BUCTFB Spec Sheet

Self-lubricating bearings resist corrosion

Click here for spec sheet: SUCSPX Spec Sheet