CAT 081-5197 BEARING

CAT 081-5197 is a Caterpillar genuine single-row deep groove ball bearing (with stamped steel cage, 0815197), suitable for hydraulic pumps, swing motors, and gearbox input shafts of 306E2/307E2 excavators and 226B3/236B3 skid steer loaders. It is used to withstand radial loads and is suitable for dusty, high-vibration environments, ensuring stable and efficient transmission operation for Cat®…

Core Parameters and Information

Item Details
Part Model: CAT 081-5197 (0815197) Deep Groove Ball Bearing

Type: Engineering Machinery Single Row Deep Groove Ball Bearing with Stamped Steel Cage

Material: GCr15 bearing steel for inner and outer rings and balls, surface heat treatment + anti-rust coating

Key Dimensions: Inner diameter 40mm, outer diameter 80mm, width 18mm, chamfer r1.5mm

Performance Parameters: Dynamic load 32.2kN, static load 18.8kN, limiting speed 8500rpm (grease lubrication), operating temperature -40℃ to +120℃

Compatible Models: 306E2/307E2 excavators, 226B3/236B3 skid steer loaders

Matching Relationship: Used with matching bearing housings, seals, and snap rings

Applications and Compatibility

Compatible Equipment: 306E2/307E2 mini excavators, 226B3/236B3 Skid steer loaders use components such as hydraulic pump spindles, rotary motor end covers, and gearbox input shafts to bear radial loads, limit radial runout, and ensure transmission accuracy and stability.

Application Scenarios: Suitable for low to medium speed, medium radial load conditions, such as hydraulic pump gear shaft support, motor housing positioning, and gearbox shift mechanism guidance. Suitable for complex working conditions such as dusty, humid, and vibrating environments, preventing wear and leakage caused by shaft vibration and extending equipment lifespan.

Compatible Equipment: Uses with bearing housings, seals, and snap rings. After installation, ensure accurate bearing positioning, reliable sealing, and no interference.

Installation and Maintenance Points:

Installation: Clean the mounting surface and journal. Heat the bearing to 80-100℃ for hot installation or cold press installation using special tools. After installation, check the radial clearance (0.018-0.028mm) to ensure no jamming.

Maintenance: Check bearing temperature and for abnormal noise every 200 hours. Regularly replenish lithium-based grease and prevent dust and moisture from entering the bearing.

Replacement: Use a puller tool during disassembly to avoid striking the bearing; install the new part in the original position, ensuring that the clearance meets the requirements, and replace the seals at the same time.