SKF RSB4-9000-AD2 Hydraulic rod seal / buffer seal
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Product Description
SKF RSB4-9000-AD2 hydraulic rod seal / buffer seal. Hydraulic cylinder rod-side sealing element — primary rod seal (PU / thermoplastic polyurethane, filled PTFE, elastomer) or upstream buffer seal absorbing pressure spikes. Rated to 400-700 bar depending on execution. Groove per ISO 5597 / ISO 7425-2. Suitable for deck cranes, hatch covers, steering gear, hydraulic winches.
Technical Specifications
- Type
- Hydraulic rod seal / buffer seal
- Designation
- SKF RSB4-9000-AD2
- HS code
- 4016.93
- Rod diameter
- 228.6 mm
- Housing groove diameter
- 249.68 mm
- Housing groove width
- 8.13 mm
- Pressure limit, maximum
- 40 N/mm²
- Design
- RSB
- Primary sealing element
- Polytetrafluoroethylene (PTFE 741)
- Compound 2
- Nitrile Rubber (NBR A-8504)
- Unit system
- Inch
- Product net weight
- 0.427 kg
- eClass code
- 23-07-01-90
- UNSPSC code
- 31181602
Standards & Compliance
- Standard
- SKF designation convention (see description for governing ISO / DIN)
- Material
- As declared by SKF designation suffix
- Temperature Range
- Per SKF product data
- HS Code
- 4016.93
Cross References
- Trelleborg 490002
- Parker 490002
- Freudenberg 490002
- Hallite 490002
- Equivalent: 490002 (Trelleborg)
- Equivalent: 490002 (Parker)
- Equivalent: 490002 (Freudenberg)
- Equivalent: 490002 (Hallite)
Compatibility & Fitment
Interchange with peer OEM equivalents on identical boundary plan and execution — confirm cage, clearance, sealing and precision-class suffix before substitution.
Product Documentation
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Technical guides
Catalogue entry last verified: 2026-08-13. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy RSB4-9000-AD2?
- RSB4-9000-AD2 can be ordered from cballast.com as a SKF catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
- What is the manufacturer part number for this SKF product?
- The manufacturer part number is RSB4-9000-AD2.
- What is the HS code for RSB4-9000-AD2?
- The customs tariff (HS) code for RSB4-9000-AD2 is 4016.93.
- Who manufactures RSB4-9000-AD2?
- RSB4-9000-AD2 is a SKF product in the Seals & Gaskets range.
- Is a datasheet available for RSB4-9000-AD2?
- Yes — the RSB4-9000-AD2 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for RSB4-9000-AD2?
- The minimum order quantity is 1.
- Is RSB4-9000-AD2 available?
- Yes — RSB4-9000-AD2 is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).