Front crankshaft oil seal for John Deere engine, d57mm - metal
Country of origin: Germany

Purpose of reinforced cuff:
A reinforced cuff (a popular name is an oil seal) is used to seal the shafts of rotation units and parts: a shaft, a rocker arm, a crankshaft, a flywheel, a gear, a gearbox, a gearbox, etc. spring, reinforced cuff keeps lubricant from flowing out of the bearing rotation zone (solid oil, lithol, and other self-contained materials)
The structure of the gland:
Reinforced cuff (gland) - 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, a spring-ring for pressing the inner edge of the cuff to the shaft. Depending on the shape of the section, there are more than 20 types of reinforced cuffs. However, the most common are only 2 types: TC and SC (single-breasted and double-breasted stuffing box). A popular name for a double-breasted cuff seal is a "dust seal" seal.