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stem pinions
the SNASFB has an eccentric locking bearing insert
Note: SNA bearings not in catalog
Center Distance: 3
High axial load and torque capacity and does not mar the shaft
G681 Brass Internal Spur Gear 21 Teeth stem pinionsBoston Gears internal gears are spur gears turned "inside out." In other words, the teeth are cut into the inside diameter while the outside diameter is kept smooth. This design allows for the driving pinion to rotate internal to the gear, which, in turn, allows for clean operation. Intended for light duty applications, these gears are available only in brass. When choosing a mating spur gear, always remember that the difference in the number of teeth
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