Cabin Rear Suspension Bottom Bracket 850W41701-6001 Sinotruk Sitrak

Product Introduction

Structure

This cabin rear suspension bottom bracket adopts an integrated precision casting process with high-strength alloy cast steel as the core material, featuring an irregular curved structural design tailored to the chassis layout. It integrates a long strip-shaped mounting arm with multi-specification precision-drilled holes and a cylindrical bushing seat at the end. The bushing seat is pre-assembled with a high-damping rubber bushing, which is equipped with bright yellow end gaskets for quick assembly identification and limit protection.

Performance

Crafted from premium alloy cast steel and treated with quenching and tempering heat treatment, the bracket achieves an excellent balance of high structural rigidity and impact toughness, capable of withstanding long-term alternating loads and impact forces from the cabin rear suspension system under heavy-duty operating conditions. The matched high-damping rubber bushing ensures low-noise operation while resisting fatigue and deformation, effectively extending the service life of the entire assembly.

Core Function

1. Serves as the core lower mounting foundation for the cabin rear suspension system, providing a fixed and damping connection point for suspension components such as air springs or shock absorbers.

2. Transmits the vertical and lateral loads of the cabin to the vehicle chassis, and disperses concentrated stress through its curved structural design to avoid local fatigue damage of the chassis and suspension components.

3. Maintains the precise installation position and geometric angle of the rear suspension components, ensuring the stability of the cabin’s horizontal posture and the rationality of the suspension movement track.