For 38 mm shafts turning in 58 mm bores, the Oil Seal 38x58x12 NBR TC (38x58x12 mm, TC type, NBR) provides the tight, spring-assisted seal that motor shafts, gearbox input stages, centrifugal pumps and tillers depend on.
Dimensions & specifications
| Inner diameter (shaft) | 38 mm |
| Outer diameter (bore) | 58 mm |
| Width | 12 mm |
| Seal type | TC — double lip, rubber covered, garter spring |
| Material | NBR – Nitrile |
| Temperature range | -30 °C … +100 °C |
Inside the TC double-lip design
The TC arrangement — rubber-covered case, garter-spring main lip, external dust lip — is the industry’s go-to solution wherever a shaft spins in an oil-filled housing.
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.
Should the shaft read slightly below the listed size — typically a few tenths of a millimetre — no concern: the lip’s interference fit accounts for it.
Buying & shipping information
- 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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