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Where wheel-end braking depends on friction generated at the drum surface, the Meritor Rear Brake Drum serves as the rotating component that works with the brake shoes to slow the vehicle. As the braking system applies force, the shoes press outward against the inner drum area, creating the contact needed to reduce wheel speed. This action supports controlled deceleration across repeated stops, whether the truck is moving through traffic, descending grades, or handling loaded routes. The drum remains central to that process because it receives the braking contact each time the system engages. Through repeated service on demanding routes, the Meritor 85123880 supports dependable brake application at the wheel end.
| Bolt Hole Diameter | 1.024 in. |
| Bolt Circle Diameter | 11.25 in. |
| Brand | Meritor |
| Bolt Hole Number | 10 |
| Brand | Part Number |
|---|---|
| 9628R930001, TDAR930001, TWDR930001 | |
| Automann | 1516701BA |
| Gunite | 3576X |
| Webb | 66661B |
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