G681 Brass Internal Spur GearBoston 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

Input Style: F Standard Quill Flange

• Flange/Foot Mounting

Pre-Lubricated: No

Boston Gear offers worm gears manufactured from a variety of materials

Click here for spec sheet: HUCNPP Spec Sheet

Pilot bore can be opened to the nominal ID reflected in the part number

When the magnet coil is de-energized

Click here for spec sheets: BUCNPF Spec Sheet

bar lengths (up to 105")

Spring-lid oil cap can be positioned 4 ways

Boston Gear manufactures both 14 1/2° and 20° PA

Click here for spec sheets: HUCNPT Spec Sheet