CAT 361-1694 BEARING-SLV-GD

CAT 361-1694 YM is a Caterpillar steel-backed aluminum-based composite sleeve bearing (shroud) suitable for connecting rods, rocker arms, or pivots in excavators, loaders, and other equipment. It is used to withstand radial loads under low-speed, heavy-load conditions and features self-lubricating and wear-resistant properties, ensuring smooth rotation of articulated parts (Cat® Parts). The following is structured technical and application information:

Core Technical Parameters

Item Details
Basic Attributes
Model 361-1694 YM, Type: Steel-backed aluminum-based composite sleeve bearing (without seal), Material: Steel back + aluminum-tin alloy (AlSn20Cu), Surface tin-plated, Hardness HB80-100, Single weight approximately 0.45 kg, Applicable temperature: -30℃ to +110℃, Corrosion resistance rating: IP54, Rated speed: ≤500 r/min, Lubrication method: Oil lubrication (recommended Cat DEO-ULS 15W-40), Load type: Radial load

Key Dimensions
Inner diameter: 65.0 mm (compatible shaft diameter tolerance +0.01/-0.01 mm), Outer diameter: 75.0 mm (tolerance ±0.05 mm), Length: 50.0 mm (tolerance ±0.10 mm), Wall thickness: 5.0 mm, Chamfer: 1.0 mm (tolerance ±0.2 mm), Inner hole surface roughness: Ra≤0.8 μm, interference fit 0.015-0.025 mm (mounted in bearing housing)

Compatible Models and Applications: Compatible with Cat 320D2 and 336D2 excavators, 966M and 972M loaders. Used in boom link pivots, stick cylinder lugs, and steering knuckle kingpins. Supporting parts include 140-1185 self-calibrating bearings, 7Y-0597 gaskets, and 9R-2498 retainers. Withstands radial load ≥50 kN. Suitable for impact and oscillation conditions.

Performance Parameters: Rated dynamic load C≥80 kN, rated static load C0≥120 kN, coefficient of friction ≤0.08 (no lubrication start)/≤0.03 (oil lubrication), wear rate ≤0.001 mm/h, limiting speed 600 rpm r/min (oil lubrication), angular deviation ≤0.5° Structural and Performance Advantages: Steel-backed aluminum-based composite structure: The steel back provides high strength and rigidity, while the aluminum-tin alloy layer offers excellent wear resistance and anti-galling properties, suitable for low-speed, heavy-load, and frequent start-stop conditions, extending the service life of Cat® Parts articulated joints.

Self-lubricating compatibility: The aluminum-tin alloy layer can store lubricating oil, effectively reducing friction under boundary lubrication conditions when used with an oil lubrication system, lowering maintenance frequency, and adapting to harsh equipment operating conditions.

Precise dimensional control: Strict tolerances for inner diameter, outer diameter, and length ensure a tight fit with shafts and bearing housings, reducing clearance and vibration, and improving equipment operating accuracy and stability.

Impact resistance and fatigue resistance: The steel back material has good impact toughness, and the composite layer has high bonding strength, capable of withstanding impact loads during equipment operation, preventing bearing cracking or detachment.