2.125-5.750" (53.98-146.05mm).

For 1" arbor

Hubless Rotors & Drums through 1 Ton Vehicles.

Includes:

940924 Backing Plate, (4.7" diameter)

940924 Backing Plate, (5" diameter)

941202 Backing Plate, (6.2" diameter)

940923 Backing Plate, (7.2" diameter)

3.42x4.03" (86.89x102.39mm)

Weight: 2.12 lb

Set of 2 hubless adaptors and 1 centering cone

For 1" arbor

Contents:

2 x Hubless adaptors: 176mm

Centering cone: 9.5 x 14.5mm

1" x 11/16" Step-Down

For Using 1" Adapters on 11/16" Arbors

Negative Rake, 1/2" x 3/8" (12.7 x 9.5mm)

For Models 2002, 3000, 4000, 4100, 7700

For #6950 Twin Cutter

Standard With Models 4000,4100,7500.

Why build a Brake Lathe with all these steel durable components and then put one little plastic one in the middle?

Designed as a mechanical fuse, this gear will fail before major damage is done to the lathe when something goes wrong such as selecting drum feed with a rotor mounted.

This little safety devise is one of the central components that help make Ammco Brake Lathes last so long.