CAT 581-7431 BEARING-AS-GD

CAT 581-7431 GD is a Caterpillar General Duty single-row deep groove ball bearing, suitable for light to medium load, low to medium speed rotating parts of gearboxes, transfer cases, or hydraulic pumps in loaders, bulldozers, and other equipment. It meets the stable support requirements of non-core working conditions with high cost performance. The GD designation indicates general working condition adaptability, balancing cost and reliability Cat®… The following are the core information and key points:

Core Technical Parameters
Item Details
Part Model CAT 581-7431 (5817431) GD Deep Groove Ball Bearing, original factory single-piece supply, suitable for radial support scenarios of journal and bearing housing

Material High carbon chromium bearing steel (52100), outer ring/inner ring hardness HRC60-64, cage is reinforced nylon 66, seal is NBR nitrile rubber, oil resistant, suitable for mineral oil/synthetic oil media

Key Dimensions Inner diameter 65mm, outer diameter 120mm, width 23mm; radial clearance C3 group (0.015-0.035mm), suitable for shaft tolerance g6, bearing housing tolerance H7, mounting chamfer 1.5×45°

Compatible Models CAT 950G/966G loaders, D6R/D6H bulldozers, 3406E Engine auxiliary components, used for gearbox secondary shafts, transfer case output shafts, hydraulic pump drive shafts, etc., compatible bearing housing model 581-7432, compatible journal diameter 65mm.

Performance Parameters: Rated dynamic load 55.8kN, rated static load 33.2kN, limiting speed 6000rpm (grease lubrication)/8000rpm (oil lubrication), operating temperature -30℃ to 120℃, sealing rating IP54, compatible with lithium-based grease (NLGI 2).

Core Functions and Structure:

Radial Load Support: The deep groove ball bearing structure can simultaneously withstand radial loads and bidirectional light axial loads, suitable for low-to-medium speed, medium-load rotating parts, ensuring smooth operation and reducing vibration and noise.

General Application Adaptability: GD (General Duty) bearings are positioned as general-purpose bearings, suitable for non-core, medium-intensity applications. They meet basic equipment performance requirements while considering cost, suitable for bulk purchases and routine maintenance replacements.

Dust and Leak Prevention: The double-sided contact sealing ring design effectively prevents dust and impurities from entering the bearing, preventing grease leakage, extending bearing life, and making it suitable for dusty and impurity-prone engineering machinery operating environments.

Convenient Installation and Maintenance: Standard dimensions and tolerances allow for compatibility with universal installation tools. No complex adjustments are required after installation; routine maintenance only requires periodic grease replenishment, reducing operating costs.