KOMATSU PC80MR-3 final drive seal PC88MR-6 KOMATSU PC80MR-3 final drive seal The high-quality seal is a complete set that prevents oil leaks at the junction of the final drive flange and the hydromotor. The set consists of two metal rings and rubber O-rings. The metal ring together with the outer bearing race form the so-called a sliding seal that allows the component to rotate and be tight. The rubber O-ring prevents oil leaks on the housing side and acts as a shock absorber to prevent the ring from being damaged during stress. Sealing functions: Prevents oil leaks from the hub reduction gear. Eliminates skew stresses. Reduces friction in the hub reduction gear. Extends the service life of the bearings (Life-Time)
Technical data: Seal dimensions: 192 x 215 x 33 mm (internal dimension/external dimension/height)
Excavator weight: 4-8 t
Catalog number: 21W-09-R4370
Fits models: PC88MR-6, PC80MR-3
Ring material: forged steel
Ring hardness: 60-65 HRC
O-ring material: NBR75
Abrasion resistance: high
Rust resistance: medium