YI 3296 Brass Internal Spur Gear Internal Spur Gears They are spring set and

They are spring set and electro-magnetically released

Clamping coupling portion will not mar the shaft

see SNA vs SUC pages for bearing insert dimensions)

Click here for spec sheets: HUCNPPA Spec Sheet

Movement is limited to a spring loaded pressure plate

YI 3296 Brass Internal Spur Gear Internal Spur Gears They are spring set andBoston 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