CAT 380-7384 BEARING-SLV-GD

CAT 380-7384 YM is a Caterpillar direct-sleeve sleeve bearing (YM indicates high quality), suitable for medium to light-load hinge points in small and medium-sized engineering machinery, bearing low-speed oscillating radial loads. Key information is as follows:

Core Technical Parameters

Item Details
Part Model: CAT 380-7384 (3807384) YM Direct-sleeve Sleeve Bearing (Suitable for medium to light-load hinge points, bearing radial loads + low-speed oscillation, matching pin 380-7383)

Core Material: 20CrMnTi alloy carburized steel, surface carburized and quenched, hardness HRC 58–62, carburized layer depth 1.0–1.2 mm, inner bore includes axial lubrication grooves, compatible with NLGI 2 lithium-based grease

Key Dimensions: Inner diameter 63.5 mm, outer diameter 76.2 mm, length 63.5 mm, wall thickness 6.35 mm, single weight approximately 2.1 kg (4.63 kg) (lb)

Rated Load: Rated radial load 160 kN, limiting speed 500 rpm, operating temperature -30℃ to +120℃

Compatible Models: CAT 312D2/313D2 excavators (stick/linkage hinge), 279D3 compact tracked loader (boom pin), 908M mini loader (bucket hinge)

Suitable Working Conditions: Light to medium load, intermittent operation, oscillation frequency ≤6 times/minute, can withstand small impact loads

Core Functions and Structural Features:
Light to Medium Load Suitability: Alloy carburized steel material, excellent impact resistance and wear resistance, suitable for small to medium-sized equipment hinges, service life over 6000 hours.

Highly Efficient Lubrication: Internal axial lubrication groove design ensures uniform grease distribution, low coefficient of friction, and reduces adhesive wear between pins and bushings.

Precise Installation: The direct-fit design with an interference fit to the mounting hole (interference 0.01–0.02 mm) ensures a coaxiality tolerance of ≤0.03 mm after installation, guaranteeing transmission accuracy.

Reliable Quality: The YM mark signifies high quality, meeting Caterpillar’s general-purpose parts warranty standards and industry durability and technical specifications.

Installation and Maintenance Points
Installation Specifications: Clean the mounting hole and surface, ensuring it is free of oil and rust. Use cold pressing, controlling the pressing force at 15–18 kN. Do not strike the end face.

Mounting hole 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 groove is full.

Maintenance Recommendations: Check the operating status every 800 working hours, looking for abnormal noises, abnormal temperature rise, and seal leaks.

When the inner diameter wear exceeds 0.18 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.