CAT 584-4975 BEARING-SLV-GD

CAT 584-4975 is a Caterpillar Yellowmark (YM) series genuine sleeve bearing, suitable for the boom, stick, and other structural joints of loaders, excavators, and other equipment. It is used for pin positioning and wear protection. The following is purely accurate information (without additional description):

Core Parameters and Information

Item Details
Part Model: CAT 584-4975 (5844975) YM Sleeve Bearing

Part Type: Straight-tube steel sleeve bearing, used between the pin and the mounting hole, bearing radial loads, providing wear resistance and positioning.

Material: Low carbon alloy steel, carburized and quenched, surface hardness HRC58-62, core hardness HRC30-40, surface roughness Ra≤0.8μm

Key Dimensions: Inner diameter 65.00mm, outer diameter 75.00mm, length 80.00mm, wall thickness 5.00mm, chamfered ends 2×45°

Structural Features No oil groove or lubrication hole; chamfered guide ends; outer diameter interference 0.012-0.028mm; compatible mounting hole tolerance H7.
Compatible Structure: Compatible pin diameter 65.00mm (tolerance h8); mounting seat hole diameter 75.00mm; clearance 0.035-0.055mm.
Applicable Working Conditions: Working load ≤150kN; working temperature -25℃ to +100℃; suitable for low-to-medium speed swing joints (≤12°/s); recommended lubrication with NLGI 2 grease.
Compatible Machines and Assemblies:
Loaders: CAT 950GC, 962M, 938K (boom and frame, boom and stick connection joints)
Excavators: CAT 320GC, 323GX, 326GC (stick and bucket, boom cylinder lug joints)
Compatible Assemblies: 950GC Loading boom joint sleeve assembly and 320GC excavator stick bearing assembly.
Installation and Fitting Points:

Before installation, clean the bushing and mounting holes, ensuring they are free of burrs and rust. Heat the bushing to 85-95℃ for hot fitting, or cold press it (pressure ≤45kN). Do not strike.

The bushing should have an interference fit with the mounting hole, with radial runout ≤0.02mm. The clearance with the pin should be 0.035-0.055mm.

After installation, check that the bushing end face fits snugly against the mounting seat without gaps, and that the joint swings smoothly without jamming. Add grease every 500 working hours.

Use a dedicated puller for disassembly to avoid bushing deformation or damage to the mounting hole. Replacement is recommended as a complete set including the matching pin (CAT 584-4976).