Description
CAT 5V-5845 103.9mm Length Trunnion
| CAT 5V-5845 103.9mm Length Trunnion |
| CAT 129-7286 BEARING |
| CAT 369-1558 BUSHING-UPPE |
| CAT 361-1691 BEARING-SLV-GD |
| CAT 586-6840 BEARING-CUP-GD |
| CAT 389-5179 BEARING |
| CAT 586-6826 Cone Tapered Roller Bearing |
| CAT 521-9960 BEARING-SEM |
The CAT 5V-5845 is a Caterpillar genuine heavy-duty steel trunnion, primarily used in the boom, stick, or linkage joints of loaders, excavators, and other equipment. As a core hinge support component, it bears radial loads and allows for flexible swinging between components, suitable for heavy-duty and high-frequency operating conditions, ensuring stable operation of the articulated structure. The following are key information.
Core Technical Parameters
Item Details
Part Model: CAT 5V-5845 (Integral Steel Trunnion, Single Piece)
Material: 4140 low-alloy structural steel, surface hardened and tempered, hardness HRC 45-50, good core toughness, impact and fatigue resistance; surface anodized black for rust prevention, salt spray resistant ≥48 hours
Key Dimensions: Shaft diameter approx. 63.5mm (2.5in), mounting base diameter approx. 82.55mm (3.25in), total length approx. 152.4mm (6.0in), thread specification M24×2, center hole diameter approx. 25.4mm (1.0in)
Single Weight: Approx. 3.2kg (7.0 lbs)
Compatible Models: Boom-stick articulation, stick-joint articulation for CAT 950H/966H loaders, 320D/323D excavators, D6N bulldozers, etc. Bucket Connection and Connecting Rod Rocker Arm Support
Performance Characteristics: Rated radial load ≥120kN, allowable swing angle ±15°, operating temperature -40℃ to +120℃, suitable for harsh working conditions such as dust and mud, resistant to impact and alternating loads.
Structure and Core Functions
Heavy-duty support: Made of low-alloy structural steel with surface hardening treatment, providing stable radial support under heavy-duty conditions, increasing fatigue life by 2-3 times compared to ordinary carbon steel trunnions, preventing deformation or breakage at the hinge joint.
Flexible hinge: The shaft diameter surface is precision ground (roughness Ra≤0.4μm), and with the bushing (e.g., 496-2239), flexible swing between components is achieved, reducing friction and wear, improving operational smoothness, and reducing energy consumption.
Positioning and fixing: Equipped with a mounting base and threaded structure, it is fastened to the hinge component with bolts, ensuring the coaxiality of the trunnion, bushing, and pin, avoiding increased clearance and abnormal noise caused by misalignment during movement.
Easy Maintenance: The integrated structure eliminates the need for complex disassembly during installation/replacement, facilitating rapid on-site repairs, reducing downtime, and lowering maintenance costs.
Suitable Scenarios and Installation/Maintenance Points
Suitable Scenarios: Used for articulated parts such as booms, sticks, and buckets in construction machinery. Suitable for heavy-duty, high-frequency oscillation and dusty/muddy working conditions in mining, infrastructure, etc., ensuring reliable operation of the articulated structure (Cat®…).
