CAT 380-7376 Sleeve Bearing

CAT 380-7376 GD is a Caterpillar General Duty (GD) straight-tube steel-backed bronze sleeve bearing (shoulder sleeve) suitable for small to medium load hinged and oscillating parts of loaders, excavators, graders, and other equipment. It supports the rotation/oscillation of the pin shaft and bears radial loads. The following is precise technical and application information:

Core Technical Parameters
Item Details
Part Model: CAT 380-7376 GD (3807376) straight-tube sleeve bearing, weighing approximately 0.32 kg (0.71 lb), flangeless straight-tube structure with circumferential lubrication grooves and radial oil filling holes, suitable for general Cat® operating conditions…

Core Materials: Steel back (42CrMo alloy steel, tempered hardness HB 260-290); Anti-friction layer (bronze alloy, containing graphite solid lubricant, coefficient of friction ≤0.10); Wear-resistant layer thickness 0.6-0.8 mm, bonding strength ≥120 MPa

Key Dimensions: Inner diameter 44.45 mm (1.75 in), outer diameter 53.98 mm (2.125 in), total length 50.8 mm (2.00 in), wall thickness 4.76 mm, lubrication groove width 1.5 mm, depth 0.4 mm, oil filling hole diameter 3.5 mm, 4 evenly distributed circumferentially.

Rated Parameters: Rated radial dynamic load 85 kN, rated radial static load 170 kN, suitable temperature -30℃ to +110℃, coefficient of friction (oil lubrication) ≤0.06, suitable swing angle ±25°, suitable pin diameter 44.45 mm.

Suitable Operating Conditions: Light to medium load swing/rotation parts, suitable for dust and vibration conditions, used for connecting rod joints, steering tie rods, small cylinder lugs, etc., bearing radial loads, not suitable for pure axial load conditions (Cat®…).

Compatible Models: CAT 906M/908M Mini Loader (Steering Linkage), 305.5E2 Excavator (Sticker Pin), 140M Grader (Traction Frame Joint), 416F2 Loader (Lifting Boom Linkage)

Supporting Parts: Compatible Pin 380-7375, Grease Nipples 1U-8878, Snap Rings 5K-8591, Installation Tools 107-7775 (54 mm Indenter)

Core Functions and Structural Features:

Universal Compatibility: GD universal design, suitable for light to medium load conditions, balancing cost and lifespan, compatible with various small-load parts of construction machinery (Cat®…).

Highly Efficient Lubrication: Circumferential lubrication grooves + radial oil injection holes ensure even grease distribution, reducing wear, suitable for long-term oscillating conditions.

Stable Load Bearing: Steel backing provides rigidity, bronze anti-friction layer suitable for light to medium loads, suitable for impact loads, reducing deformation and vibration.

Easy installation: Flanged, straight-cylinder structure; can be press-fitted at room temperature; suitable for quick on-site maintenance, reducing downtime.

High compatibility: Compatible with mineral oils and synthetic greases; adaptable to common temperatures and operating conditions; highly versatile.