The specific model of this bearing is NCL308 (corresponding to the old model 102308).

1. Basic Parameters

• Inner Diameter (d): 40 mm

• Outer Diameter (D): 90 mm

• Width (B): 23 mm

• Weight: Approx. 0.695 kg

• Structural Features: The NCL type (old model 102308) is typically a cylindrical roller bearing with double retaining rings. This design allows it to withstand heavy radial loads. Additionally, the inner and outer rings are separable, facilitating easier installation.

2. Main Applications

Cylindrical roller bearings are primarily used to handle radial loads, offering high load-carrying capacity and low friction. They are widely used in:

• Heavy-Duty & Construction Machinery: Excavators, loaders, cranes, and material handling equipment.

• Automotive Industry: Commonly found in transmissions, drive axles, etc. Based on your previous inquiry about rear axle reducer assemblies for heavy-duty trucks, this bearing model is very likely used as an internal support component within such drivetrain systems.

• General Machinery: Large/medium electric motors, machine tool spindles, internal combustion engines, and reduction gearboxes.