Replace the worn seal on a 27 mm shaft with the Oil Seal 27x52x8 NBR TC — 27x52x8 mm, TC profile, NBR compound — it drops into a 52 mm bore and stops the leak. Popular in electric motors, gearboxes, pumps and agricultural machinery.
Specifications
| Inner diameter (shaft) | 27 mm |
| Outer diameter (bore) | 52 mm |
| Width | 8 mm |
| Seal type | TC — double lip, rubber covered, garter spring |
| Material | NBR – Nitrile |
| Temperature range | -30 °C … +100 °C |
About the TC profile
Its TC construction pairs a rubber-covered OD (a snug press-fit in the bore) with a spring-energised sealing lip and a separate dust lip, so both oil retention and contamination exclusion are covered.
About the NBR nitrile compound
The compound is NBR nitrile, selected for oil-and-grease compatibility across motors, reducers and pumps. Note the limits: brake fluid degrades nitrile, and sunlight ages stored rubber — so store spares dark and dry.
Should the shaft read slightly below the listed size — typically a few tenths of a millimetre — no concern: the lip’s interference fit accounts for it.
Buying & shipping information
- Each listing is for one seal — no MOQ, all prices in US dollars.
- Import duties or taxes, if levied by your customs, are paid by the buyer and are not included in the price.
- Worldwide shipping at a single flat rate, with a tracking number emailed to you.
- To double-check the size, read how to measure an oil seal or contact us with your dimensions — size checks before purchase are free.


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