CAT 584-7387 51.02mm Inner Diameter Sleeve Bearing

CAT 584-7387 YM is a Caterpillar general-purpose straight-sleeve sleeve bearing (YM indicates high quality), suitable for light to medium load hinge points in small to medium-sized construction machinery, used to withstand low-speed oscillating radial loads. The following are the key information:

Key Technical Parameters
Item Details
Part Model: CAT 584-7387 (5847387) YM Straight-Sleeve General-Purpose Sleeve Bearing (Suitable for light to medium load hinge points, withstands radial loads + low-speed oscillation)

Core Material: High-quality carbon steel, surface hardened, hardness HRC 58–62, inner bore with axial lubrication groove, compatible with NLGI 2 lithium-based grease

Key Dimensions: Inner diameter 51.02 mm, outer diameter 63.5 mm, length 50.8 mm, wall thickness 6.24 mm, single weight approx. 1.2 kg (2.65 lb)

Rated Load: Rated radial load 120 kN, limiting speed 500 rpm, operating temperature… -30℃ to +120℃
Compatible Models: CAT 305.5E2/306E2 mini excavators (stick/linkage hinge), 249D/259D compact track loaders (boom pin), 906M mini loaders (bucket hinge)
Suitable Working Conditions: Suitable for light to medium loads and low utilization conditions; compatible with hinges with an oscillation frequency ≤ 5 times/minute; can withstand small impact loads.
Core Functions and Structural Features:
Suitable for light to medium loads: Universal design, suitable for non-continuous operation and light to medium load scenarios; high cost-effectiveness; service life meets industry standards; suitable for the oscillation requirements of small equipment hinges (Cat®…).

Reliable Lubrication: Internal axial lubrication grooves ensure uniform grease distribution, reduce the coefficient of friction, and reduce adhesive wear between pins and bushings.

Easy Installation: The direct-sleeve structure with an interference fit to the bearing housing (interference 0.01–0.02 mm) ensures a coaxiality tolerance of ≤0.03 mm after installation, guaranteeing transmission accuracy.

Quality Assurance: The YM mark represents high quality, meeting Caterpillar’s general-purpose parts warranty standards and fulfilling industry durability and technical specifications for Cat®…

Installation and Maintenance Points

Installation Specifications: Clean the bearing housing and mounting surface, ensuring they are free of oil and rust. Use cold press-fit, controlling the pressing force to 12–15 kN. Do not strike the end face.

Bob housing tolerance: +0.01–+0.02 mm. After installation, check for radial runout ≤0.03 mm.

After installation, apply NLGI 2 lithium-based grease, ensuring the lubrication grooves are full.

Maintenance Recommendations: Check the bearing’s operating condition every 1000 operating hours, looking for abnormal noises, abnormal temperature rises, and seal leaks.

When the inner diameter wear exceeds 0.15 mm, it needs to be replaced in time. When replacing, the matching pin and sealing ring should be replaced at the same time to ensure the sealing and lubrication effect.