CAT 535-8193 BEARING-SEM

CAT 535-8193 SEM is a Caterpillar genuine single-row cylindrical roller bearing (suitable for planetary gear sets in loader/excavator transmissions, used for heavy-duty radial support in high-speed rotating parts). The following is pure raw data and does not include replacement parts information.

Core Technical Parameters (Raw Data)

Item Details
Basic Attributes Model 535-8193 SEM, Type: Single-row cylindrical roller bearing (with cage, separable inner ring), Material: Inner ring/outer ring/rolling elements are high-carbon chromium bearing steel (AISI 52100), Cage: Brass, Weight: 3.85 kg, Operating Temperature: -40℃ to +120℃, Suitable for: Mineral oil/synthetic gear oil, Lubrication: Oil lubrication, Limiting Speed: 5600 rpm (oil lubrication), Sealing Type: Open Cat® Parts

Key Dimensions Inner Diameter: 100 mm (3.937 in), Outer Diameter: 150 mm (5.906 in), Width: 35 mm (1.378 in), Number of Rolling Elements: 28, Rolling Element Diameter: 12 mm, Inner Ring Wall Thickness: 15 mm, Outer Ring Wall Thickness: 12.5 mm, Chamfer at Both Ends: r3 mm, Inner Diameter Tolerance: +0.020/-0 mm, outer diameter tolerance 0/-0.018 mm, width tolerance ±0.15 mm, surface roughness Ra 0.2 μm Cat® Parts
Compatible Models and Parts: Compatible with Cat 966M/972M loader gearbox planetary carrier, 336D2 excavator rotary gearbox first-stage planetary gear shaft, 1 piece per shaft, bearing pure radial load, supporting high-speed rotating gears, controlling gear radial runout, and ensuring transmission accuracy.
Performance Parameters: Basic rated dynamic load Cr=112 kN, basic rated static load Cor=138 kN, fatigue life ≥12000 hours, rolling element hardness HRC 62-64, inner and outer ring surface hardness HRC 58-62, cage temperature resistance ≥150℃, coefficient of friction μ≤0.005, radial clearance 0.015-0.025 mm Cat® Parts Structural and Performance Advantages

Separable Inner Ring Design: Facilitates installation and maintenance; the inner or outer ring can be replaced individually, reducing maintenance costs and adapting to different shaft diameters and installation spaces.

Brass Cage: High strength and thermal conductivity; precisely guides rolling elements, reducing friction and wear; suitable for high-temperature, high-speed operation in gearboxes.

AISI 52100 Material: High hardness and wear resistance; excellent fatigue resistance; suitable for heavy-duty, high-speed rotation in engineering machinery, extending bearing life.

Open Structure: Suitable for oil lubrication systems, facilitating lubricant flow, reducing bearing operating temperature, and improving heat dissipation efficiency (Cat® Parts).

Installation and Maintenance Points (Original Data)

Installation: Clean the bearing and mounting housing. Use the heat-fit method (heat the inner ring to 80-100℃ and hold for 30 minutes) or the press-fit method (pressure ≤120 kN) to ensure the bearing end face is flush with the gear shaft end face. After installation, radial runout should be ≤0.015 mm (Cat® Parts).

Maintenance: Check oil level and quality every 1000 hours to ensure clean lubricating oil and maintain the oil level at the center of the lowest rolling element of the bearing; check bearing operating temperature every 5000 hours, ensuring the temperature is ≤80℃, and troubleshoot any abnormalities promptly.

Troubleshooting: Abnormal noise indicates wear on the rolling elements and raceways; excessive temperature indicates lubrication and installation accuracy; excessive vibration indicates bearing clearance and gear meshing condition, and if necessary, replace the bearing and inspect related components.