CAT 468-7795 BEARING

CAT 468-7795 is a Caterpillar genuine single-row tapered roller bearing, suitable for power transmission systems, used to withstand combined radial and unidirectional axial loads. The following is structured raw data, excluding replacement parts information (Cat® Parts).

Core Technical Parameters (Raw Data)

Item Details
Basic Attributes Model 468-7795, type is single-row tapered roller bearing (including inner ring, outer ring, rollers, cage), material is high carbon chromium bearing steel (GCr15), quenched and tempered (HRC 60-64), single weight 3.2 kg, working temperature -40℃ to +120℃, lubrication method is grease lubrication/oil lubrication, suitable for medium speed and medium heavy load conditions

Key Dimensions Inner diameter 85 mm (3.346 in), outer diameter 150 mm (5.906 in), width 37 mm (1.457 in), cone angle 10°30′, rolling element diameter 14 mm, number of rolling elements 20, inner ring large end diameter 110 mm, outer ring small end diameter 100 mm, radial clearance 0.015-0.035 mm, chamfered ends 2×45°
Compatible Models and Parts: Compatible with drive axle differentials and steering knuckles of Cat 320 and 323 excavators, 140 GC graders, and 930 and 950 loaders. One piece per part. Bears radial and unidirectional axial loads. Suitable for speeds ≤3000 r/min.

Performance Parameters: Radial rated dynamic load ≥120 kN, radial rated static load ≥150 kN, maximum permissible linear velocity ≤8 m/s, coefficient of friction ≤0.002 (grease lubrication), fatigue life ≥8000 hours, rated axial load ≥35 kN

Structural and Performance Advantages: High carbon chromium bearing steel material: GCr15 steel, quenched and tempered, possesses high hardness, high wear resistance, and good dimensional stability, increasing bearing life by 50% compared to ordinary carbon steel bearings. Suitable for medium and heavy-duty operating conditions.

Single-row tapered roller bearing structure: Capable of simultaneously with radial and unidirectional axial loads. The tapered angle design ensures uniform contact between the rolling elements and raceways, reducing contact stress, minimizing wear, and improving operational accuracy.

High-precision dimensional control: Dimensional tolerances are strictly controlled within ±0.01 mm, ensuring precise fit with shafts and bearing housings, reducing vibration and noise during operation, and improving transmission efficiency.

Original manufacturer quality assurance: Manufactured by Caterpillar, meeting stringent quality standards for engineering machinery components, ensuring high compatibility with other equipment parts, strong reliability, and avoiding malfunctions caused by dimensional deviations.

Installation and maintenance points (raw data)

Installation process: Clean the bearing, shaft, and bearing housing surfaces. Check the shaft diameter (js6) and bearing housing bore (H7) dimensions. Heat the inner ring to 80-100℃ and heat-fit it. Press the outer ring into the bearing housing using a cold-pressing method (interference 0.010-0.025 mm). After installation, check the radial clearance and end face runout (≤0.02 mm). Pre-tighten the bearing according to the manual.

Maintenance Cycle: Check grease level every 500 hours, replenish grease every 2000 hours, check bearing wear every 5000 hours, and replace the bearing when radial clearance exceeds 0.1 mm. Disassemble and inspect every 8000 hours; if raceway spalling, roller wear, or cage damage is found, replace immediately.

Common Faults and Solutions: Overheating of the bearing is often due to poor lubrication or overly tight installation, requiring inspection of the lubrication system or adjustment of the preload. Abnormal noise is often due to bearing wear or foreign object intrusion, requiring replacement of the bearing and cleaning of the mounting area. Excessive vibration is often due to excessive bearing clearance or misalignment, requiring adjustment of the clearance or reinstallation.