The right 55x68x12 shaft seal for the job: the Oil Seal 55x68x12 NBR TC is a spring-loaded TC lip seal, 55x68x12 mm, in oil-resistant NBR nitrile — built for 55 mm shafts and 68 mm bores found in large reducers, belt-conveyor pulleys, slurry pumps and construction machinery.
Technical specifications
| Inner diameter (shaft) | 55 mm |
| Outer diameter (bore) | 68 mm |
| Width | 12 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
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.
About the NBR nitrile compound
Nitrile rubber (NBR) is the workhorse of oil sealing: fully compatible with mineral oils, lubricating greases and common hydraulic fluids — the media found in most gearboxes and motors. Avoid contact with brake fluid, and keep spares shaded from 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.
Ordering & delivery
- Price is for 1 piece — order any quantity, no minimum; listed in US dollars.
- Any import duty or tax imposed by your country is the buyer’s responsibility and excluded from our prices.
- Flat-rate shipping to every country · tracking number sent by email.
- For a size check, How to measure an oil seal walks you through it, or send us your dimensions for free advice.
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