183-9520: Bearing – Cone(Debris Resistant)

CAT 183-9520 is the inner ring of a Caterpillar single-row tapered roller bearing, suitable for heavy-duty transmission components in heavy equipment. It is often used in conjunction with a corresponding outer ring and roller assembly. Key information is as follows:

Key Parameters
Item Details
Type: Separable inner ring of a single-row tapered roller bearing, capable of bearing only radial and unidirectional axial combined loads, requires a corresponding outer ring and roller assembly.
Dimensions (Metric/Imperial): Inner diameter 165.10 mm (6.5 inches), width approx. 63.50 mm (2.5 inches), raceway taper adapted for single-row tapered rollers, precisely matching the corresponding journal.
Material: Bearing-grade high-carbon chromium alloy steel, carburized and quenched, surface hardness HRC60-64, high core toughness, fatigue and impact resistance, suitable for heavy-duty impact conditions.
Structure: Separable inner ring with tapered raceway, facilitating assembly and clearance adjustment, suitable for replacing the inner ring separately during equipment overhauls, reducing maintenance costs.
Precision Raceway surface roughness Ra≤0.4μm, raceway taper error≤0.005mm, ensuring contact accuracy with rollers and outer ring, reducing friction loss.

Suitable for: Main reducers, differentials, final drive shafts, etc., in heavy equipment such as Cat 773G mining dump trucks and D10T bulldozers, used to withstand combined radial and axial loads under heavy loads and impact vibrations, supporting stable journal operation.

Suitable for low-speed, heavy-load conditions in mining, infrastructure, etc., adaptable to the need for individual inner ring replacement during equipment overhaul and maintenance, extending the life of transmission components.

Performance characteristics: Separable design, suitable for maintenance and replacement of corresponding tapered roller bearings without replacing the entire bearing assembly, reducing maintenance costs.

High-carbon chromium alloy steel + carburizing and quenching process, excellent fatigue and impact resistance, extending the service life of the inner ring by approximately 30% compared to ordinary bearings.

The high-precision raceway and tapered design ensure good contact with the rollers and outer ring, reduce friction loss, improve transmission efficiency, and are compatible with Caterpillar’s high-precision transmission standards.