Choose the Oil Seal 40x50x7 NBR TC when a 40 mm shaft in a 50 mm housing needs a reliable double-lip barrier. Its 40x50x7 mm size is a regular in workshop motors, helical gearboxes, vane pumps and tractor attachments.
Dimensions & specifications
| Inner diameter (shaft) | 40 mm |
| Outer diameter (bore) | 50 mm |
| Width | 7 mm |
| Seal type | TC — double lip, rubber covered, garter spring |
| Material | NBR – Nitrile |
| Temperature range | -30 °C … +100 °C |
How the TC design works
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.
Material: NBR – Nitrile
This is an NBR-nitrile seal — the everyday elastomer for oil-lubricated equipment, compatible with mineral oils, greases and hydraulic media. For longest life, avoid brake fluid contact and store spares away from direct 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.
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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