CAT 320-7366 BUSHING

CAT 320-7366 is a Caterpillar genuine carbon steel straight-tube bushing, primarily used in the boom, linkage, or frame articulation points of TH series telescopic forklifts (such as TH337C/TH336C/TH414C, etc.). It provides wear resistance, positioning, and cushioning, is suitable for frequent swinging and medium-load conditions, ensures smooth operation of the articulated parts, and extends the life of the pins (Cat®…).

Core Technical Parameters

Item Details
Part Model: CAT 320-7366 Straight Bushing

Material: Carbon Steel, surface hardened and tempered, hardness HRC 45-50, inner wall rolled/honed, roughness Ra≤0.8μm, suitable for pin clearance fit, temperature resistance -40℃ to 120℃, suitable for mineral oil/lithium-based grease lubrication Cat®…

Key Dimensions: Inner diameter approx. 38-42mm, outer diameter approx. 50-54mm, length approx. 60-65mm, wall thickness approx. 6-7mm, no flange, chamfered ends 5°-10° for easy installation, clearance with pin 0.05-0.10mm to ensure flexible hinge, coaxiality tolerance ≤0.01mm

Compatible Models: Compatible with CAT The TH337C/TH336C/TH414C/TH514C/TH417C/TH406C/TH407C telescopic boom forklifts are designed for use in boom articulation, linkage pins, and frame support points, adapting to frequent swaying and positioning requirements under medium-load conditions. Cat®…

Performance Characteristics: Suitable for radial loads ≤30kN, sway frequency ≤10 times/minute, excellent wear resistance, reducing wear on pins and mounting holes, buffering impact loads, reducing vibration and noise at the articulation points, and extending component lifespan.

Core Functions and Structure:

Articulation Positioning and Wear Resistance: As an intermediate component between the pin and mounting hole, it ensures precise positioning of the articulation point, reduces direct friction between the pin and the hole, lowers the wear rate, and adapts to frequent swaying conditions such as boom lifting and extending of the telescopic boom forklift.

Buffering and Vibration Reduction: The carbon steel material possesses a certain degree of toughness, which can buffer impact loads during operation, reduce vibration and noise at the articulation points, improve operating comfort, and protect surrounding structural components.

Clearance Compensation: A well-designed radial clearance ensures smooth operation of the hinged joints while compensating for manufacturing and installation errors, adapting to different motion requirements under various operating conditions.

Installation Specifications: Clean the bushing, pin, and mounting hole surfaces, removing oil, rust, and impurities. Inspect the bushing for cracks, deformation, and scratches on the inner wall. Measure the mounting hole dimensions to ensure an interference fit (0.015-0.025mm) to prevent loosening.

Use a special tool to press the bushing into the mounting hole; do not strike it. Ensure the bushing end face is flush with the mounting surface, without skewing. After installation, check that the pin inserts smoothly, swings freely, and does not jam.

Apply lithium-based grease after installation to ensure sufficient lubrication of the hinged joints, reducing friction and wear. Select a suitable viscosity grease for medium-load conditions, such as lithium-based grease NLGI 2.