For 13 mm shafts turning in 30 mm bores, the Oil Seal 13x30x7 NBR TC (13x30x7 mm, TC type, NBR) provides the tight, spring-assisted seal that household appliance motors, power tools, aquarium pumps and small gear drives depend on.
Technical specifications
| Inner diameter (shaft) | 13 mm |
| Outer diameter (bore) | 30 mm |
| Width | 7 mm |
| Seal type | TC — double lip, rubber covered, garter spring |
| Material | NBR – Nitrile |
| Temperature range | -30 °C … +100 °C |
About the TC profile
TC is the standard rotary-shaft profile for good reason: a rubber OD seals the bore side, a spring-loaded lip seals the shaft side, and a dust lip extends service life in dirty environments.
NBR nitrile rubber at a glance
NBR (Nitrile) is the standard compound for general industrial sealing. It handles mineral oils, greases and hydraulic fluids, which is why it is the default choice in gearboxes, electric motors and pumps. Keep it away from brake fluid, and store spare seals out of direct 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.
Purchase and delivery notes
- 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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