Sized 50x75x10 mm (inner × outer × width), the Oil Seal 50x75x10 NBR TC seals a 50 mm shaft running in a 75 mm bore. This size turns up often in mining conveyors, industrial reducers, mixer shafts and rolling equipment.
Dimensions & specifications
| Inner diameter (shaft) | 50 mm |
| Outer diameter (bore) | 75 mm |
| Width | 10 mm |
| Seal type | TC — double lip, rubber covered, garter spring |
| Material | NBR – Nitrile |
| Temperature range | -30 °C … +100 °C |
Why the TC profile is so widely used
Three features define the TC type: the rubber outer case that fills small bore imperfections, the garter-spring-loaded lip that maintains contact under runout, and the auxiliary lip that acts as a dirt barrier.
Material: NBR – Nitrile
The seal lip is moulded from NBR, a nitrile rubber prized for resistance to mineral oil, grease and hydraulic fluids — the default elastomer for general machinery. It should not meet brake fluid, and stored spares fare best away from UV light.
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.
Order details
- 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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