56x74/78x8/11mm Stepped Double Lip Oil Seal
Model / SKU: VKEFOT-56-74-78-8-11-NBR
56x74/78x8/11mm black NBR stepped double lip oil seal for automotive drive shaft, transmission and axle rotary shaft sealing. Factory direct, in stock, worldwide shipping. Send RFQ for bulk wholesale pricing.
Tags: 56x74/78x8/11mm oil seal, stepped double lip rotary shaft seal, automotive drive shaft oil seal, transmission rotary shaft seal, black NBR nitrile rubber oil seal, aftermarket auto oil seal replacement
Product photos
Technical summary
Product specifications. Refer to the approved drawing for dimensional tolerances and installation requirements.
| Spec | Value |
|---|---|
| Size (mm) | 56x74/78x8/11 |
| Material | NBR |
| Material | NBR (Nitrile Butadiene Rubber) |
| Structure | double lip stepped rotary shaft oil seal, metal casing with garter spring |
| Size | 56x74/78x8/11 mm |
Pricing: request a quote (B2B / wholesale).
MOQ / commerce notes: In stock: ships in 1 to 2 days | Not in stock but still in current production: 10 to 15 days | Not in stock and not in production: 25 to 30 days
Product details
This aftermarket stepped double lip rotary shaft oil seal 56x74/78x8/11 mm is manufactured from black NBR nitrile rubber with carbon steel casing and built-in garter spring. It is engineered for rotary shaft sealing on automotive drive shafts, transmissions and axle assemblies.
VKEFOT manufactures oil seals, O-rings and custom rubber sealing components in Xingtai, China. Our products export to Europe, North America, Middle East and Southeast Asia. Importers, auto part wholesalers and MRO distributors can send RFQ with size, purchase quantity and destination country for formal quotation.
Features & Benefits
Dual lip construction delivers primary oil retention and secondary dust & mud exclusion for harsh rotary shaft working environments.
Integrated garter spring maintains stable radial contact pressure on the sealing lip during continuous shaft rotation.
Black NBR nitrile rubber offers excellent wear resistance and good compatibility with mineral engine oil and gear lubricants.
The special stepped outer profile 74/78mm OD and stepped height 8/11mm matches vehicle housings requiring two-stage stepped installation geometry.
Metal outer casing provides rigid support for secure press-fit installation inside housing bore.
This seal is an aftermarket replacement part; verify shaft, bore dimensions and working condition before placing your order.
Material & Specification
- Sealing lip：NBR nitrile butadiene rubber, black
- Reinforcement：carbon steel metal casing
- Spring：carbon steel garter spring
Confirm rubber compound grade with RFQ for high-temperature operating applications.
Compatible fluids: mineral gear oil, engine oil, standard mineral lubricants.
Not suitable for strong solvents, ketones or concentrated ester oils.
Packaging & Delivery
Samples and small trial lots are available for stocked sizes; sample freight cost confirmed on RFQ.
Send inquiry with dimension in mm, quantity, destination country and working medium for a firm quotation.
FAQ
What is this 56x74/78x8/11mm oil seal used for?
This 56x74/78x8/11mm oil seal is a black NBR stepped double lip rotary shaft seal for automotive drive shaft, transmission and axle sealing.
What are the full specifications of the 56x74/78x8/11mm stepped oil seal?
This seal: 56mm inner diameter, 74/78mm stepped outer diameter, 8/11mm stepped height. Material: black NBR nitrile rubber. Structure: double lip stepped rotary shaft oil seal with metal casing and garter spring.
What vehicles or assemblies fit the 56x74/78x8/11mm oil seal?
It fits rotary shafts of automotive drive shafts, gearboxes, transmissions and vehicle axles. Always verify shaft and bore dimensions before ordering.
Is 56x74/78x8/11mm oil seal genuine OEM auto part?
No. It is an aftermarket replacement seal for auto repair. Please confirm all dimensions before purchase.
How to install 56x74/78x8/11mm oil seal correctly to stop oil leakage?
1. Clean shaft and housing bore thoroughly, remove burrs and old seal residue. 2. Lubricate lips and shaft with compatible oil, dry installation is forbidden. 3. Press seal evenly with installation tool and keep perpendicular. 4. Never hammer the seal, protect outer surface from scratches. 5. Rotate shaft manually and run low pressure leakage test.
What is MOQ and lead time for bulk order of 56x74/78x8/11mm oil seals?
Final price and lead time will be confirmed on formal quotation.
What information do I need to submit for RFQ of this stepped oil seal?
Send ID×OD×stepped height in mm, purchase quantity, destination country and working medium for quotation.
Can you make custom logo and custom export packaging for this oil seal?
Custom logo, marking and export packaging are available. All custom requirements need to be confirmed before order.
What temperature range can NBR black oil seal work within?
Contact us if you need seals for higher temperature working conditions.