The right 26x42x8 shaft seal for the job: the Oil Seal 26x42x8 NBR TC is a spring-loaded TC lip seal, 26x42x8 mm, in oil-resistant NBR nitrile — built for 26 mm shafts and 42 mm bores found in drive motors, planetary gearboxes, irrigation pumps and feed mixers.
Size and material details
| Inner diameter (shaft) | 26 mm |
| Outer diameter (bore) | 42 mm |
| Width | 8 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
Its TC construction pairs a rubber-covered OD (a snug press-fit in the bore) with a spring-energised sealing lip and a separate dust lip, so both oil retention and contamination exclusion are covered.
About the NBR nitrile compound
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.
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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