CAT 453-2348 SLEEVE

CAT 453-2348 is a Caterpillar genuine steel positioning sleeve/shroud, suitable for articulated pins, cylinders, or transmission components in loaders, excavators, and other equipment. It is used for positioning, vibration isolation, and wear reduction, ensuring precise fit and stable operation of components.

Core Technical Parameters

Item Details
Part Model CAT 453-2348 Steel Positioning Sleeve (Single Component)

Material High carbon steel, surface hardened (HRC 58-62), some with wear-resistant coating, resistant to impact and dust conditions

Key Dimensions Inner diameter approx. 40-60mm, outer diameter approx. 70-90mm, length approx. 50-70mm, precise tolerances, weight approx. 1-3kg (subject to actual product/manual)

Compatible Models Loaders 950K/966K, Excavators 320D/336D, Graders 140M, etc., used for boom, rocker arm, cylinder pin positioning and spacers

Performance Characteristics High hardness and wear resistance, low coefficient of friction, precise positioning and anti-slip movement, suitable for high-frequency oscillation and impact loads, extends the life of pins and supports

Core Functions and Structure

Precise positioning and isolation: Controls the radial/ Axial clearance prevents axial movement and uneven wear of components, ensuring the motion accuracy of hinged parts and adapting to high-frequency swinging mechanisms such as booms and rocker arms.

Friction reduction and protection: Isolates the pin from metal-to-metal contact with the support, reducing friction and wear, preventing dust and moisture from entering the clearance, reducing the risk of corrosion and jamming, and adapting to harsh working conditions.

Impact absorption and vibration attenuation: Absorbs impact loads from boom lifting, steering, and other operations, attenuates vibration, reduces structural stress concentration, and protects the frame and working device.

Easy installation and efficient maintenance: Standardized dimensions fit original factory tooling, allowing for quick installation, easy on-site replacement, and reduced maintenance costs and downtime.

Installation and maintenance points: Installation specifications: Clean the pin, support hole, and sleeve to remove oil, rust, and impurities. Check the pin/hole for scratches and proper ovality.

Use cold pressing and specialized tooling for installation. Do not strike the sleeve body. After installation, check coaxiality (≤0.05mm) to ensure no misalignment.

Tighten the locking pins/bolts to the specified torque according to the manual, and apply the designated grease (such as lithium-based grease) to ensure adequate lubrication of the hinged parts.

Maintenance Recommendations: Inspect every 500-800 working hours for wear and cracks on the sleeve, and for looseness and abnormal noise at the hinged parts.

Replace immediately if wear exceeds limits (radial clearance > 0.8mm) or deformation occurs to avoid secondary damage to critical components such as pins and supports.