The right 50x110x12 shaft seal for the job: the Oil Seal 50x110x12 NBR TC is a spring-loaded TC lip seal, 50x110x12 mm, in oil-resistant NBR nitrile — built for 50 mm shafts and 110 mm bores found in steel-plant gearboxes, screw conveyors and big-bore rotating shafts.
Dimensions & specifications
| Inner diameter (shaft) | 50 mm |
| Outer diameter (bore) | 110 mm |
| Width | 12 mm |
| Seal type | TC — double lip, rubber covered, garter spring |
| Material | NBR – Nitrile |
| Temperature range | -30 °C … +100 °C |
About the TC profile
TC seals work with a triple defence — a rubber-coated case seating tightly in the bore, a main lip held against the shaft by a garter spring, and an outer dust lip that keeps abrasive particles away.
NBR nitrile rubber at a glance
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.
Measuring your shaft a few tenths under the nominal figure is expected; the spring-loaded lip is built to seal with that small interference.
Purchase and delivery notes
- Sold per piece — no minimum order, priced in US dollars.
- Prices exclude any import duties or taxes; if your customs authority charges them, they are the buyer’s responsibility.
- One flat shipping rate worldwide · tracking number by email.
- To confirm this is the right size, see how to measure an oil seal, or send us your dimensions — pre-sale size checks are free.


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