The Oil Seal 38x50x7 NBR TC is a TC rotary shaft seal sized 38x50x7 mm (ID × OD × width). It keeps oil inside and dirt outside on a 38 mm shaft seated in a 50 mm bore — a size common in industrial motors, speed reducers, hydraulic pumps and farm equipment.
Size and material details
| Inner diameter (shaft) | 38 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 |
Why the TC profile is so widely used
As a TC-pattern seal it seals in two stages: a primary spring-loaded lip holds the oil film on the shaft, while a second lip fends off dust and water spray; the rubber-covered case keeps the whole unit anchored in the bore.
Why NBR for this seal
The compound is NBR nitrile, selected for oil-and-grease compatibility across motors, reducers and pumps. Note the limits: brake fluid degrades nitrile, and sunlight ages stored rubber — so store spares dark and dry.
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.
Reviews
There are no reviews yet.