Description
Ammco 7996 Brake Lathe Shear Gear with C-Clip for Disc Brake Feed Mechanism
The shear gear is a deliberate weak-link in the disc brake feed mechanism of Ammco brake lathes. It is designed to fracture before costly internal damage occurs if the lathe is operated incorrectly. Replace this white plastic gear and C-clip when the feed mechanism slips, skips, or stops advancing the cutting tool. This is the most commonly replaced gear on Ammco brake lathes.
Product Information
- Brand / Equipment: Ammco (Hennessy Industries)
- Manufacturer / Reference Part Number: 7996 (alternate: 907996, 42038)
- Store SKU: AMO7996
- Component: White plastic shear gear (safety gear) with C-clip, disc brake feed mechanism
- Listed Application: Disc brake feed box on Ammco brake lathe models 3000, 4000, 4100, 7500, 7700
Compatible Makes / Verified Fitment Models
- Ammco: 3000, 4000, 4100, 7500, 7700
Fitment & Ordering Notes
The shear gear is located inside the disc brake feed box on the side of the machine. Confirm your Ammco brake lathe model before ordering. Contact us at (866) 902-6060 with questions.
All brand names and part numbers are used for reference and identification purposes only. This is an aftermarket alternative part; it is not produced by the original equipment manufacturer.




