CAT 374-8362 BEARING-SLV-GD

CAT 374-8362 YM is a Caterpillar genuine straight-tube bimetallic universal sleeve bearing (YM represents general tolerances and standard surface finish grades), suitable for medium-load oscillating/rotating pivots. The following are precise original specifications and application information, excluding replacement parts.

Core Technical Parameters

Item Details
Part Model CAT 374-8362 YM (Straight Bimetallic Sleeve Bearing, YM General Purpose Grade)

Product Type Bimetallic Composite Sleeve Bearing, Steel Back + Anti-friction Alloy Layer, Suitable for Medium Load, Low Speed ​​Oscillating/Rotating Conditions

Material The steel back is Q345 low-alloy high-strength steel, the anti-friction layer is CuSn8Pb3 tin bronze, thickness 1.5 mm, no surface coating, YM grade surface roughness Ra ≤ 1.6 μm

Key Dimensions Inner diameter 80 mm (3.150 in), outer diameter 90 mm (3.543 in), length 85 mm (3.346 in), chamfered ends 1×45°, wall thickness 5 mm

Rated Parameters Applicable pressure ≤ 25 MPa, operating temperature -20℃ ~ +120℃, linear velocity ≤ 1.2 m/s, suitable medium is mineral oil-based grease

Physical Properties Density 7.8 g/cm³, Elastic modulus 200 GPa, Compressive strength 900 MPa, Coefficient of thermal expansion 13×10⁻⁶/℃
Single weight: Approx. 0.89 kg (1.96 lbs)
Lubrication design: With axial lubrication grooves and 2 radial oil holes, suitable for centralized lubrication systems, ensuring more uniform grease flow.
Tolerance standards: Inner diameter tolerance H8, outer diameter tolerance m7, YM grade dimensional tolerance, outer diameter interference 0.07–0.12 mm
Structure and core characteristics:
Bimetallic composite structure: Low-alloy high-strength steel backing ensures sufficient rigidity and impact resistance; tin bronze anti-friction layer provides good embedding and conformability, effectively reducing pin wear and adapting to impact and vibration under medium-load conditions.

YM grade universal compatibility: Dimensional tolerances and surface roughness adaptable to medium-load, non-high-precision pivots, balancing cost and performance, highly versatile, and adaptable to non-core load-bearing joints of various machine models.

High-efficiency lubrication design: Axial lubrication grooves combined with radial oil holes ensure even grease coverage of the bearing’s inner surface, reducing the risk of dry friction and extending the service life of the bearing and pins.

Optimized for medium loads: The 5 mm wall thickness design can withstand medium radial loads, adapting to non-main load-bearing pivots such as connecting rods and stabilizer bars, preventing direct contact wear between structural components and pins.

Compatible models and application scenarios:
Compatible equipment: Connecting rods, stabilizer bars, bucket pins, and other medium-load pivot joints in CAT 320D2/323D2 excavators, 950GC/962H loaders, etc.

Core purpose: Installed between the pin and structural components, it provides low-friction support, absorbs shocks and vibrations under medium load conditions, prevents wear on the pin and structural components, ensures flexible pivot joint operation, and reduces maintenance costs.