8M-2031: Bearing – Ball(Debris Resistant)

CAT 8M-2031 is a Caterpillar single-row deep groove ball bearing, suitable for heavy-duty equipment such as gearboxes and drive axles, bearing radial and bidirectional axial loads. Key information is as follows:

Key Parameters
Item Details
Type: Single-row deep groove ball bearing, outer ring with dust cover, non-contact seal, allows shaft-to-bore misalignment angle ≤0.5°, suitable for medium-load, medium-speed applications, bearing radial + bidirectional axial loads

Dimensions (Metric/Imperial): Inner diameter 44.45mm (1.750 inches), outer diameter 80.00mm (3.1496 inches), width 20.64mm (0.8125 inches), suitable for matching corresponding journals and mounting space

Material: Inner/outer ring is high-carbon chromium bearing steel (SUJ2), quenched and tempered, hardness… HRC60-64; Ball bearings are made of bearing steel with ultra-precision ground surfaces; the cage is made of stamped steel plate, improving operational stability and temperature resistance.

Accuracy: Inner diameter tolerance ±0.008mm, outer diameter tolerance ±0.012mm, radial clearance C3 grade (0.012-0.022mm), suitable for smooth operation under medium load conditions.

Load Capacity: Dynamic load rating approximately 28.5kN, static load rating approximately 16.2kN, suitable for medium speed, medium load, and light impact conditions, suitable for equipment transmission parts.

Suitable Applications: Suitable for gearbox output shafts, drive axle differentials, engine camshafts, etc., in equipment such as Cat 525D/535D loaders, 776C mining trucks, D6R bulldozers, and D343 engines, used to reduce friction in rotating parts and ensure smooth equipment operation.

Suitable for replacing worn bearings during equipment overhauls or parts replacement, without replacing the entire transmission assembly, reducing maintenance costs.

Performance Characteristics: Single-row deep groove ball bearing design, compact structure, easy installation, suitable for medium-load, medium-speed applications, with a maximum speed limit approximately 25% higher than self-aligning bearings of the same size.

Stamped steel cage paired with bearing steel balls results in a low coefficient of friction and operating noise ≤60dB, suitable for equipment transmission systems and other applications requiring high stability.

Non-contact dust cover design, IP54 protection rating, prevents dust and moisture from entering the bearing, extending grease life, suitable for harsh working conditions such as mining and infrastructure projects.

Alternative Models: Direct replacements: 8M-2032, 1F-0652, interchangeable and suitable for the same equipment and installation conditions.