1T-2042: 153.59 ID Retainer Freewheel Cam Sleeve

CAT 1T-2042 is a dedicated cam sleeve (retainer) for Caterpillar torque converters/transmission freewheel mechanisms. It has an inner diameter of 153.59 mm (6.047 inches). Its core function is to position the inner ring of the freewheel clutch, fix the cam assembly, and prevent debris intrusion. It is suitable for heavy-duty engineering machinery transmission systems. Key information is as follows:

Core Parameters
Item Details
Type: Freewheel cam sleeve (retainer), used in one-way clutch (freewheel) assemblies, positioning the inner ring and cam, limiting radial/axial displacement, preventing debris from entering the meshing surface, and ensuring stable one-way locking and overrunning functions.
Dimensions (Metric/Imperial): Inner diameter 153.59 mm (6.047 inches), outer diameter 184.15 mm (7.250 inches), thickness 25.4 mm (1.000 inches), keyway width 12.7 mm (0.500 inches), suitable for spline shaft positioning, bolt hole distribution circle diameter 165.1 mm, suitable for… 4×M16 Bolt Fixing

Material: 4140 medium carbon alloy steel, quenched and tempered, hardness HRC28-32, surface nitrided (nitriding layer depth 0.3-0.5mm, surface hardness HV≥850), wear-resistant and corrosion-resistant, suitable for impact and vibration conditions in transmission systems.

Accuracy: Inner diameter roundness ≤0.003mm, coaxiality ≤0.020mm, keyway symmetry ±0.05mm, end face flatness ≤0.015mm, ensuring accurate positioning of the cam and inner ring, reducing meshing noise and wear.

Sealing Compatibility: Built-in double sealing grooves, compatible with O-rings (e.g., 123-4567) and dust rings (e.g., 1T-2043). Apply oil-resistant sealant during installation to prevent hydraulic oil leakage and impurity intrusion.

Suitable Applications: Compatible with Cat 988H loader torque converter freewheel clutch, D9T bulldozer gearbox one-way clutch, 777G… This freewheel mechanism, used in mining truck transmission systems, secures the inner ring of the freewheel to the cam, ensuring reliable one-way locking, smooth overrunning, and preventing freewheel failure due to debris jamming.

It is suitable for replacement during equipment maintenance/overhaul when the cam sleeve shows wear, deformation, keyway damage, or aging of the seal groove, preventing transmission failure caused by freewheel slippage, abnormal noise, or locking failure.

Performance Characteristics: Made of alloy steel with nitriding treatment, it has a hard surface and tough core, providing strong impact and wear resistance, suitable for high-load, high-frequency impact conditions in transmission systems, and extending the life of the freewheel assembly.

High-precision inner diameter and keyway ensure accurate positioning of the cam and inner ring, reducing operational eccentricity and meshing clearance, and improving freewheel locking response speed and transmission efficiency.

Double seal groove design provides dual sealing, effectively isolating hydraulic oil from external contaminants, reducing the risk of freewheel jamming, and enabling long-term stable operation under harsh conditions.