The rear oil seal of the crankshaft of the Perkins engine - 158.75x133.35mm

Manufacturer: Corteco
Country of origin: Italy

The purpose of the reinforced cuff:
The reinforced sleeve (popular name - oil seal) serves to seal the shafts of nodes and rotating parts: shaft, rocker arm, crankshaft, flywheel, gear, gearbox, reducer, etc. Thanks to the elastic edge from the inner hole, which in most cases is pressed with a spring, a reinforced cuff prevents the lubricant from leaking out of the bearing rotation zone (Solidol, Lithol, and other lubricants)
The structure of the omentum:
Reinforced cuff (seal) is a rubber or polyurethane part of a round shape with a hole, consisting of a metal reinforced curved ring and, in the vast majority of cases, spring-rings for pressing the inner edge of the cuff against the shaft. Depending on the shape of the section, there are more than 20 types of reinforced cuffs. However, there are only 2 types that are most common: TC and SC (single-sided and double-sided oil seals). The popular name of the double-sided cuff is "seal with anther".