SKF 18558 CR / HMS / HMSA radial shaft seal
SKF

SKF 18558 CR / HMS / HMSA radial shaft seal

Part number18558Item numberSKF-18558HS code4016.93
SKF designation convention (see description for governing ISO / DIN)
MaterialAs declared by SKF designation suffix
Seals & Gaskets
Radial Shaft Seals
MOQ:1

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Product Description

SKF 18558 cr / hms / hmsa radial shaft seal. SKF radial shaft seal for rotating-shaft primary containment against dust, splash and low-head oil pressure. Designation CR / HMS5 / HMSA10 / HMSA10RG (single lip, single lip with dust lip, double lip with garter spring). Elastomer standard nitrile (NBR) to ISO 6194-1 with metal case; hydrogenated nitrile (HNBR), fluoroelastomer (FKM / Viton), silicone (VMQ) and polyacrylate (ACM) available by suffix. Bore, outside diameter and width follow ISO 6194 / DIN 3760.

Technical Specifications

Type
CR / HMS / HMSA radial shaft seal Designation: SKF 18558 HS code: 4016.93 Shaft diameter: 47.63 mm Housing bore diameter: 63.551 mm Seal width: 6.35 mm Limiting speed: 3064 r/min Maximum operating temperature: 100 °C minimum operating temperature: -40 °C Permissible circumferential speed: 7.6 m/s Rotational speed: 3064 r/min Design: HM21 Auxiliary lip: No Sealing lip material: Nitrile rubber (NBR) Type of outside diameter: Metal-cased Unit system: Inch Product net weight: 0.0187 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 18558
  • Trelleborg 18558
  • Chesterton 18558
  • Garlock 18558
  • National 18558
  • Equivalent: 18558 (Freudenberg)
  • Equivalent: 18558 (Trelleborg)
  • Equivalent: 18558 (Chesterton)
  • Equivalent: 18558 (Garlock)
  • Equivalent: 18558 (National)

Compatibility & Fitment

Interchange with peer OEM equivalents on identical boundary plan and execution — confirm cage, clearance, sealing and precision-class suffix before substitution.

Not sure if it fits? Email sales@cballast.com with your equipment serial number or photos — we confirm fit before you order.

Product Documentation

Document preview: SKF 18558 CR / HMS / HMSA radial shaft seal — Specification sheet

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 18558?
18558 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 18558.
What is the HS code for 18558?
The customs tariff (HS) code for 18558 is 4016.93.
Who manufactures 18558?
18558 is a SKF product in the Seals & Gaskets range.
Is a datasheet available for 18558?
Yes — the 18558 datasheet can be viewed and downloaded on this page.
What is the minimum order quantity for 18558?
The minimum order quantity is 1.
Is 18558 available?
Yes — 18558 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).