The right 50x75x7 shaft seal for the job: the Oil Seal 50x75x7 NBR TC is a spring-loaded TC lip seal, 50x75x7 mm, in oil-resistant NBR nitrile — built for 50 mm shafts and 75 mm bores found in large reducers, belt-conveyor pulleys, slurry pumps and construction machinery.
Technical specifications
| Inner diameter (shaft) | 50 mm |
| Outer diameter (bore) | 75 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
Every TC seal combines three elements: a rubber-covered case that grips the bore, a spring-loaded sealing lip that follows shaft runout, and a dust lip that shields the main lip from contamination.
Material: NBR – Nitrile
Made of NBR (acrylonitrile-butadiene rubber), the seal tolerates the mineral oils and lithium greases that lubricate most machinery. Standard practice: keep NBR away from brake fluid, and store unused seals in their bag, 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.
Ordering & delivery
- Individual pieces, no minimum order — checkout in US dollars.
- Our prices do not cover customs duties or taxes your country may apply; those fall to the buyer.
- One worldwide flat shipping fee · every parcel tracked, number emailed.
- Before you buy, confirm the fit: measuring guide or free dimension check.
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