The end cover oil seal (End Cover Seal or Cap Seal) is a type of seal fitted at the end of shafts or axles, and its job is to prevent the leakage of fluids (such as oil or grease) and the ingress of contaminants into the system. Unlike common oil seals that rotate on a shaft, this type is usually installed in a fixed position (such as at the end of a bearing or housing) and works like a sealing lid.
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The end cover oil seal (End Cover Seal or Cap Seal) is a type of seal fitted at the end of shafts or axles, and its job is to prevent the leakage of fluids (such as oil or grease) and the ingress of contaminants into the system. Unlike common oil seals that rotate on a shaft, this type is usually installed in a fixed position (such as at the end of a bearing or housing) and works like a sealing lid.
Wheel bearing end cap; axle shaft end; gearbox and differential; behind the oil pump; electric motor; industrial gearbox; pumps and compressors; horizontal and vertical shafts
| Item | End cover | Standard |
|---|---|---|
| Installation | At the shaft end | On a moving shaft |
| Function | Static, covering | Precision sealing |
| Spring | None | Usually none |
Before buying, measure the current part with calipers and match it against the specification table: inner diameter (ID) at the shaft contact surface, outer diameter (OD) at the housing seat, and thickness (height) measured perpendicular to these two diameters. If you're unsure about the size or lip type, send the old part's code or a photo of it to IranSeal's sales team so they can find the exact match.
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SI 8The SI8 model, from the family of silicone-coated oil seals, is designed for reciprocating motion under pressure and for aluminum housings.
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SI BWith two sealing lips and a corrosion-resistant rubber coating, the SI B shows high resistance to heat and wear.
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SI0The SI0 oil seal is a version of TTO's silicone-coated series used in washing machines and vehicle suspension systems.
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