CAT 1H-7422 RING

CAT 1H-7422 is a Caterpillar genuine steering clutch grease ring used for lubrication distribution and sealing of steering clutches in tracked bulldozers/loaders, ensuring stable lubrication between the friction plates and the release bearing. The following is precise original part information:

Core Parameters and Compatibility Information

Item Details
Part Model: CAT 1H-7422 (1H7422) Steering Clutch Grease Ring, Genuine Part, Weight: Approx. 0.05 kg (0.11 lb)

Core Material: Nitrile rubber (NBR) + metal skeleton composite structure, resistant to mineral-based grease, anti-aging, suitable for medium-temperature conditions in transmission systems

Key Dimensions: Inner diameter approx. 101.6 mm (4.00 in), outer diameter approx. 114.3 mm (4.50 in), width approx. 5.08 mm (0.20 in), with radial grease grooves and axial positioning lips, compatible with steering clutch release sleeve mounting positions

Structural Features The annular groove design stores and evenly distributes grease to the contact surfaces of the clutch release bearing and friction plates, while the positioning lip prevents displacement, ensuring continuous lubrication and reducing dry friction wear.

Compatible Models: Compatible with the steering clutch assemblies of CAT D3/D4/D5 series tracked bulldozers and 931B/935B loaders, used for lubrication and sealing of the release mechanism, matching components such as the 1H-7421 release sleeve and 1H-7423 grease seal ring.

Matching Parts: Compatible with CAT 1U-7360 puller and 2S-8359 mounting sleeve. During replacement, simultaneously check the clutch release stroke and grease passage unobstructedness.

Core Functions and Installation Points:
Lubrication Distribution and Sealing: Stores and evenly delivers grease to the contact area of ​​the steering clutch release bearing and friction plates, reducing friction and wear during disengagement/engagement, while preventing dust and oil intrusion, extending the life of the clutch assembly.

Installation Specifications:
Clean the mounting surface and ring surface, removing oil and burrs. Check the interference fit between the ring and the release sleeve, ensuring no deformation or cracks.

Install cold-install the ring, ensuring the positioning lip is embedded in the mounting groove and that the grease injection groove and lubrication channel are aligned for optimal grease flow.

After installation, check the seal for tightness, perform a grease injection test to ensure no leakage, and verify that the release mechanism operates smoothly without jamming.

Maintenance Recommendations:
Inspect the ring for aging, cracking, or deformation every 500 working hours. Replace with genuine parts immediately if any abnormalities are found.

Use only genuine CAT 1H-7422 parts to avoid material/size mismatches that could lead to lubrication failure or clutch burning.