Description
CAT 585-0223 BEARING-SLV-GD
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The CAT 585-0223 YM sleeve bearing (also commonly known as a YM bushing) is a powder metallurgy self-lubricating sleeve bearing used by Caterpillar in the articulated parts of engineering machinery. It is suitable for heavy-duty and oscillating conditions and can compensate for installation misalignment. The following is raw data only and does not include replacement parts information.
Core Technical Parameters (Raw Data)
Item Details
Basic Attributes Model 585-0223, Type YM Sleeve Bearing (Self-lubricating), Material Powder Metallurgy (P/M) Alloy Steel, Single Weight 0.98 kg (2.16 lbs), Operating Temperature -40℃ to +120℃, Suitable Radial Load ≤120 kN, Suitable Shaft Diameter 48.26 mm, Fit Tolerance H7, Corrosion Resistance ≥120 hours Salt Spray, Surface Treatment Carburizing and Quenching, Hardness HRC 58-62, Elastic Modulus 207 GPa, Coefficient of Thermal Expansion 11.8×10^-6/℃, Fit Clearance 0.025-0.05 mm
Key Dimensions (Metric/Imperial) Inner Diameter 48.26 mm (1.900 in), Outer Diameter 63.5 mm (2.500 in), Length 76.2 mm (3.000 in), Wall Thickness 7.62 mm, chamfer C2 mm, flatness ≤0.02 mm, surface roughness Ra≤0.8 μm, inner diameter tolerance +0.012/-0.006 mm, outer diameter tolerance +0.018/-0.010 mm, length tolerance +0.12/-0.06 mm, roundness ≤0.015 mm
Performance parameters: coefficient of friction ≤0.04 (dry state), compressive strength ≥1400 MPa, shear strength ≥550 MPa, fatigue limit ≥420 MPa (10^7 cycles), self-lubricating porosity 15-20%, assembly interference 0.015-0.025 mm, maximum applicable speed 1500 rpm, oil film thickness ≥0.005 mm mm
Structure and Adaptability Characteristics
Powder Metallurgy Self-Lubricating Structure: Made of porous powder metallurgy alloy steel, the pores contain lubricating oil, allowing for continuous oil supply without additional lubrication. Suitable for low-speed oscillation and heavy-load conditions in the articulation parts of construction machinery, reducing friction and wear, and lowering maintenance requirements.
High-Precision Dimensional Design: Uniform wall thickness, smooth chamfers, suitable for interference fit installation, compensating for angular deviations within ±2°, adapting to installation coaxiality errors, reducing local stress concentration, and improving component operational stability.
Universal Compatibility: Suitable for the boom, stick, and connecting rod articulation parts of Caterpillar loaders, excavators, and other equipment. Suitable for frequent oscillation and impact load conditions. Easy installation, no additional lubrication system required.
Compatible Models and Application Scenarios
Loaders: Boom connecting rods and steering arm articulation parts of models such as 950K and 966K. Suitable for frequent material loading and unloading movements, ensuring flexible operation of steering and working devices.
Excavators: Suitable for the boom linkage and boom support hinges of models such as 320D2 and 323D2, adaptable to heavy-duty and swinging conditions in excavation operations, improving the reliability of the working device.
Others: Compatible with the hinge parts of the working devices of some Caterpillar graders and bulldozers, suitable for high-intensity operation under harsh conditions.
Installation and Maintenance Points (Original Data)
Installation: Clean the bearings and mounting seats, removing oil stains and metal shavings. Inspect the bearings for cracks, deformation, and dimensional compliance.
Cold press installation (pressing force ≤ 70 kN), ensuring an interference fit (interference 0.015-0.025 mm). After installation, the coaxiality should be ≤ 0.02 mm, requiring no additional lubrication.
After installation, check the inner diameter and rotational flexibility. Test run for 30 minutes, monitoring for no jamming, abnormal noise, or abnormal heating.
Maintenance: Check the bearing wear every 2000 hours. Replace immediately if wear exceeds 0.25 mm.
Regularly check the tightness of the mounting bracket. Use a special pulling tool when disassembling; do not pry hard and damage the bearing and mounting bracket.
