Structural Overview & Functional Modules

Integral cast housing structure integrated with brake chamber brackets, slack adjusters, and brake camshafts. It carries full vehicle load while providing rigid mounting for the braking and suspension systems.

1. Axle Housing Body: One-piece cast housing assembly (HD90009331775) hosting the main reducer in the center with integrated leaf spring seats and suspension torque rod brackets.

2. Slack Adjusters: Supports either automatic slack adjuster (HD90009341105) or manual slack adjuster (DZ9112340177) options.

3. Brake Chambers: Dual brake chambers (HD90009360059, 1 per side) mounted on heavy brackets to actuate camshaft rotation during braking.

4. Brake Camshafts: Left and Right brake camshafts (DZ9112340189/190) converting pneumatic chamber thrust into mechanical brake shoe expansion torque.