CAT 5M-7966 SLEEVE

The CAT 5M-7966 is a Caterpillar genuine torque divider sleeve, cylindrical in shape, used in torque dividers of heavy equipment transmission systems. It serves for shaft diameter compensation, positioning, and load transfer, and is compatible with the transmission assemblies of wheel loaders, graders, and other similar machines. The following are the key details.

Core Technical Parameters

Item Details
Part Model: CAT 5M-7966 (Torque Divider Sleeve, Single Piece, Cylindrical)

Material: 4140 Alloy Steel, Heat-treated, Hardness HRC 28-32, Tensile Strength ≥900MPa, Wear-resistant and Fatigue-resistant, Suitable for Impact Loads in Transmission Systems

Key Dimensions: Outer diameter approx. 80mm (3.15in), Inner diameter approx. 45mm (1.77in), Length approx. 80mm (3.15in), Uniform wall thickness, Suitable for mounting positions on corresponding shaft diameters of torque dividers

Single Weight: Approx. 0.23kg (0.51 lbs)

Performance Characteristics: Positioning accuracy ≤0.05mm, can withstand radial loads and torque impacts in transmission systems, suitable for operating temperatures -40℃ to + 100℃, Vibration-resistant and Corrosion-resistant

Structure and Core Functions

Shaft Diameter Compensation and Positioning: The cylindrical structure fills the installation gap between the shaft and components in the torque distributor, achieving precise positioning and preventing radial sway or axial movement of components during transmission, ensuring stable torque transmission.

Load Transmission and Buffering: As an intermediate component for torque transmission, it evenly transmits the load between the shaft and the housing, buffering transmission impacts, reducing local stress concentration, and preventing premature wear or breakage of components due to uneven stress, thus extending the life of the torque distributor assembly.

Protecting Mating Surfaces: Isolates the direct contact between the shaft and the housing, preventing damage to mating surfaces due to friction, corrosion, or impact, reducing maintenance costs, and improving the reliability of the transmission system.

Compatible Models and Application Scenarios

Compatible Equipment: Torque distributor assemblies for CAT 966K, 972M series wheel loaders, 140M, 160M series graders, etc.

Installation Location: The mating parts of the torque distributor’s input shaft, output shaft, gears, and bearings, used for shaft diameter compensation and positioning.

Core Applications: Provides precise positioning and load transfer for internal components of the torque distributor, ensuring efficient operation of the transmission system. It is suitable for complex operating conditions such as heavy loads and high-frequency transmissions, reducing component wear and failures.

Installation and Maintenance Points
Installation Specifications: Clean the sleeve and mounting surface, checking for cracks, deformation, or burrs. Use the cold pressing method for installation, applying even pressure to the sleeve end face using a dedicated press. Do not strike to prevent deformation or damage to the mating surfaces.

After installation, check the clearance between the sleeve and the shaft/housing. The clearance should be ≤0.05mm to ensure accurate positioning and no loosening. Tighten the surrounding bolts according to the original manufacturer’s specifications to ensure reliable component fixation.

Maintenance Recommendations: Check the sleeve condition every 1500 hours. If wear, deformation, or cracks are found, replace it immediately. Check the lubrication of mating parts to ensure sufficient lubrication and reduce friction and wear.

During a major overhaul of the torque distributor assembly, replace the sleeve and matching seals simultaneously to avoid the old parts affecting the assembly accuracy and performance of the new components. After replacement, add the specified type and amount of lubricating oil to ensure effective lubrication.