The 30x45x8 mm Oil Seal 30x45x8 NBR TC keeps lubricant circulating where it belongs — inside the housing — on the 30 mm shafts and 45 mm bores typical of drive motors, planetary gearboxes, irrigation pumps and feed mixers.
Dimensions & specifications
| Inner diameter (shaft) | 30 mm |
| Outer diameter (bore) | 45 mm |
| Width | 8 mm |
| Seal type | TC — double lip, rubber covered, garter spring |
| Material | NBR – Nitrile |
| Temperature range | -30 °C … +100 °C |
How the TC design works
As a TC-pattern seal it seals in two stages: a primary spring-loaded lip holds the oil film on the shaft, while a second lip fends off dust and water spray; the rubber-covered case keeps the whole unit anchored in the bore.
Why NBR for this seal
Material-wise this is NBR nitrile: a balanced compound for mineral oil, diesel-range fuels and greases at moderate temperatures — ideal for rotating equipment. Two cautions: no exposure to glycol-based brake fluid, and keep stock seals out of sunlight.
If your shaft measures a few tenths of a millimetre under the nominal size, that is normal — the sealing lip is designed with interference for exactly that.
Ordering & delivery
- 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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