CAT 299-0207 BEARING

CAT 299-0207 is a Caterpillar genuine single-row deep groove ball bearing, suitable for hydraulic pumps, gearboxes, or drive axles in equipment such as small loaders and skid steer loaders. It is primarily used for radial load bearing under low-noise, low-to-medium speed conditions, while also capable of withstanding slight bidirectional axial loads, ensuring smooth component operation.

Core Technical Parameters

Item Details
Part Model: CAT 299-0207 Single Row Deep Groove Ball Bearing

Material: Bearing steel (SAE 52100), hardened, raceway surface hardness HRC 60-64, cage made of stamped steel plate, suitable for medium and low speed conditions

Key Dimensions: Inner diameter 40mm, outer diameter 80mm, width 18mm, chamfer radius r≈1.5mm, radial clearance C3 grade, suitable for standard installation clearance requirements Cat®…

Compatible Models: Commonly compatible with Caterpillar 242D, 246D, 252D skid steer loaders, 906M, 907M mini loaders, and some 303.5E2 compact excavators for hydraulic pumps, gearbox input shafts, or drive axle half-shafts.

Performance Characteristics The deep groove ball bearing design can simultaneously withstand radial loads and slight bidirectional axial loads. Its low coefficient of friction makes it suitable for low-to-medium speed, low-noise operating conditions. Optional sealing structures protect against dust and moisture intrusion.

Core Functions and Structure

Radial Load Bearing: The raceway design of the deep groove ball bearing efficiently transmits radial loads, adapting to the radial force requirements of components such as hydraulic pumps and gearboxes, ensuring stable equipment operation.

Low Friction and Smooth Operation: The bearing steel material and precision-machined raceways reduce friction loss. The stamped steel cage guides the even distribution of steel balls, reducing operating noise and vibration, and improving equipment operating comfort.

Protection and Adaptability: Optional sealing structures prevent external impurities from entering the bearing, avoiding wear on the raceways and steel balls, making it suitable for outdoor operating environments and extending bearing life.

Installation and Maintenance Points
Installation Specifications: Before installation, clean the bearing mounting seat and journal surface to remove oil, rust, and impurities; check the bearing for scratches and deformation, ensuring the mounting surface is flat to avoid uneven bearing load after installation.

Cold-press installation is used. Use specialized tooling to press the bearing into the mounting base or journal. Do not directly strike the bearing end face with a hammer to prevent raceway deformation or damage to the steel balls.

After installation, check the fit clearance between the bearing and the journal/mounting base to ensure there is no jamming. Control the bolt tightening torque according to the machine manual to prevent loosening.

Maintenance Recommendations: Every 1000-1500 working hours, check the bearing for abnormal noise, increased vibration, or abnormal temperature rise. If any abnormalities are found, disassemble and inspect immediately. If the raceway shows signs of peeling, pitting, or other damage, replace the bearing immediately.

Regularly change the equipment’s grease/oil to ensure adequate bearing lubrication. Use lithium-based grease suitable for the operating conditions. For oil lubrication, control the oil level and cleanliness to prevent impurities from entering and accelerating wear.