Differential Cover HD90149320140 Bridge Box Cover for Shacman Dongfeng Foton Trucks

Differential Cover HD90149320140 Bridge Box Cover for Shacman Dongfeng Foton Trucks

1. Functions

• Sealing and Protection:Serves as a sealing cover for the axle (middle axle) housing, protecting the internal inter-axle differential, gears, and bearings from dust, moisture, and impurities.

• Load Bearing and Support: Typically contains bearing housings to support the drive shaft or axle gears of the inter-axle differential, bearing radial and axial forces during transmission.

• Lubrication and Maintenance: Ensures that lubricating oil within the axle housing does not leak, maintaining good lubrication of the inter-axle differential under high-load operation.

2. Features

• High-Strength Materials: Typically made of high-strength ductile iron or cast steel to ensure no deformation or cracking under heavy-load impacts.

• Precision Machining: Sealing surfaces and bearing bores undergo high-precision milling and boring to ensure tight sealing during installation and coaxiality of internal bearings.

• Stable Structure: Designed with reinforcing ribs to enhance overall rigidity and adapt to the complex road conditions and high torque output of heavy-duty trucks.

When replacing or repairing HD90149320140, the following parts are typically required:

1. Seals: Bridge housing cover sealing gaskets or sealant.

2. Bearings: Bearings installed inside the housing cover (e.g., 30211 specification).

3. Fasteners: High-strength mounting bolts (typically grade 10.9 or higher).

4. Inter-shaft differential assembly: The core component directly covered and protected by this housing cover.

5. Oil seals: Oil seals on the bridge input or output shafts.