The Split Oil Seal 380x420x20 NBR is a split shaft seal sized 380 × 420 × 20 mm — it fits a 380 mm shaft and seats in a 420 mm housing bore.
Specifications
| Inner diameter (shaft) | 380 mm |
| Outer diameter (bore) | 420 mm |
| Width | 20 mm |
| Seal type | Split — two-piece shaft seal, bolted halves |
| Material | NBR – Nitrile |
| Temperature range | -30 °C … +100 °C |
About the split design
Two halves, one working seal. The split design exists for shafts that cannot be dismantled: open the seal, wrap it around the shaft where it sits, bolt it closed. Downtime drops from days to hours.
Material: NBR – Nitrile
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.
Measure the shaft where the lip rides, not the old seal — worn rubber always reads small.
Ordering & delivery
- 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.
- Not sure 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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