One 20x48x7 mm part does the sealing: the Oil Seal 20x48x7 NBR TC wraps a 20 mm shaft in its spring-loaded lip and presses firmly into a 48 mm bore — the kind of fit seen across household appliance motors, power tools, aquarium pumps and small gear drives.
Dimensions & specifications
| Inner diameter (shaft) | 20 mm |
| Outer diameter (bore) | 48 mm |
| Width | 7 mm |
| Seal type | TC — double lip, rubber covered, garter spring |
| Material | NBR – Nitrile |
| Temperature range | -30 °C … +100 °C |
Inside the TC double-lip design
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.
Why NBR for this seal
This is an NBR-nitrile seal — the everyday elastomer for oil-lubricated equipment, compatible with mineral oils, greases and hydraulic media. For longest life, avoid brake fluid contact and store spares away from direct sunlight.
Don’t worry if your micrometer shows the shaft a few tenths under size — the garter-sprung lip is designed to seal against exactly that condition.
Buying & shipping information
- Every order is per piece with no MOQ; payments in US dollars.
- Prices exclude duties and taxes that your customs may assess — those are the buyer’s obligation.
- Flat worldwide shipping · email delivery of the tracking number.
- Double-check dimensions before ordering: how to measure an oil seal, or message us your size for a free check.
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