SKF 557503 HDL / HDS / HS radial shaft seal for heavy industrial service
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Product Description
SKF 557503 hdl / hds / hs radial shaft seal for heavy industrial service. SKF wide-cross-section radial shaft seal for heavy industrial shafts, generally above 200 mm bore. Wider seal face improves fatigue life on paper mills, marine deck machinery, steel mills, cement mills and mining conveyors. Standard elastomer nitrile (NBR) or hydrogenated nitrile (HNBR); FKM available. Full metal case (HS type) or rubberised outside diameter (HMS variants). Dimensioned per ISO 6194 and OEM engineering drawings.
Technical Specifications
- Type
- HDL / HDS / HS radial shaft seal for heavy industrial service Designation: SKF 557503 HS code: 4016.93 Shaft diameter: 246.08 mm Housing bore diameter: 279.4 mm Seal width: 17.48 mm Limiting speed: 1164 r/min Maximum operating temperature: 100 °C minimum operating temperature: -35 °C Permissible circumferential speed: 15 m/s Rotational speed: 1164 r/min Design: HDS2 Auxiliary lip: No Sealing lip material: Nitrile rubber (NBR) Type of outside diameter: Metal-cased Unit system: Inch Product net weight: 0.577 kg eClass code: 23-07-08-01 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
- Freudenberg 557503
- Trelleborg 557503
- Chesterton 557503
- Garlock 557503
- Equivalent: 557503 (Freudenberg)
- Equivalent: 557503 (Trelleborg)
- Equivalent: 557503 (Chesterton)
- Equivalent: 557503 (Garlock)
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: 2026-08-30. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy 557503?
- 557503 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 557503.
- What is the HS code for 557503?
- The customs tariff (HS) code for 557503 is 4016.93.
- Who manufactures 557503?
- 557503 is a SKF product in the Seals & Gaskets range.
- Is a datasheet available for 557503?
- Yes — the 557503 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 557503?
- The minimum order quantity is 1.
- Is 557503 available?
- Yes — 557503 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).