CAT 095-1020 BEARG ROLLER

CAT 095-1020 (0951020) is a Caterpillar single-row cylindrical roller bearing (NJ type, with a single flange on the inner ring), suitable for the gearboxes and drive axle main reducers of heavy-duty equipment such as 349/352/374 excavators and 982/988 loaders. It is used to bear heavy radial loads and can also handle light unidirectional axial loads, suitable for low- to medium-speed operating conditions. It is often matched with bearing housings and locknuts to ensure stable transmission and reliable support under heavy loads.

Core Parameters

Item Details
Part Model: CAT 095-1020 (0951020) Roller Bearing

Type: Single-row cylindrical roller bearing (NJ type, with inner ring single flange), capable of withstanding heavy radial loads + unidirectional light axial loads, suitable for low-to-medium speed and impact conditions

Material: Inner ring/outer ring: GCr15 chromium bearing steel, quenched and tempered, hardness HRC60-64; Rolling elements: GCr15, precision P5; Cage: Stamped steel plate/copper alloy, high rigidity and impact resistance

Key Dimensions: Inner diameter approx. 150mm, outer diameter approx. 225mm, width approx. 48mm, roller diameter approx. 18mm, quantity approx. 22 pieces, single weight approx. 7.2kg

Compatible Machines: CAT 349, 352, 374 excavators, 982, 988 loaders, compatible with C13/C15 Engine transmission secondary shaft and drive axle differential

Matching Relationship: Matches with bearing housings and lock nuts, installed on the transmission output shaft and drive axle main reducer input shaft support positions, bearing radial loads and limiting unidirectional shaft movement.

Adaptation and Application:
Applicable Parts: Transmission secondary shaft/intermediate shaft, drive axle main reducer input shaft support positions. Interference-fitted to bearing housings, bearing heavy radial loads and unidirectional light axial loads, suitable for heavy-load impact conditions, ensuring transmission stability.

Application Scenarios: Heavy-duty operations such as mining and infrastructure construction; adapts to core support components of the transmission system, improving bearing impact resistance and lifespan, reducing failure risk.

Core Functions: Heavy radial support + unidirectional axial limiting, reducing friction, suppressing vibration, adapting to heavy-load impacts, protecting the shaft system and housing, extending component lifespan, and reducing maintenance frequency.

Installation and Maintenance Points

Installation: Clean the bearing housing and shaft surface. Heat (≤100℃) the inner ring before installation, controlling the radial clearance to 0.030-0.050mm. Tighten with locknuts to ensure no looseness or jamming, and avoid uneven loading.

Maintenance: Check bearing temperature (≤85℃) and vibration every 250 hours. Regularly change gear oil and filter elements. If abnormal noise, abnormal temperature rise, or excessive metal shavings in the oil are found, immediately stop the machine for repair.

Replacement: Prioritize original parts. Verify the model and dimensions. After installation, test the transmission system to ensure it operates normally, without abnormal noise, leakage, or abnormal temperature rise.

Purchase and Verification Recommendations