SKF 51800 CR / HMS / HMSA radial shaft seal
Pricing
Request a quote
We reply within 24 hours
Product Description
SKF 51800 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 51800 HS code: 4016.93 Shaft diameter: 131.78 mm Housing bore diameter: 158.75 mm Seal width: 12.7 mm Limiting speed: 1706 r/min Maximum operating temperature: 100 °C minimum operating temperature: -40 °C Permissible circumferential speed: 11.8 m/s Rotational speed: 1706 r/min Design: HDW1 Auxiliary lip: No Sealing lip material: Nitrile rubber (NBR) Type of outside diameter: Metal-cased with sealant coating on the outside diameter Unit system: Inch Product net weight: 0.263 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 51800
- Trelleborg 51800
- Chesterton 51800
- Garlock 51800
- National 51800
- Equivalent: 51800 (Freudenberg)
- Equivalent: 51800 (Trelleborg)
- Equivalent: 51800 (Chesterton)
- Equivalent: 51800 (Garlock)
- Equivalent: 51800 (National)
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
More from SKF
SKF
SKF 7203CD/HCP4ADGB Super-precision angular contact ball bearing
SKF
SKF PHG864-8M-85 Timing belt (synchronous drive belt)
SKF
SKF 51852 CR / HMS / HMSA radial shaft seal
SKF
SKF 7203CD/HCP4ADT Super-precision angular contact ball bearing
SKF
SKF PHG864-8M-S440 Timing belt (synchronous drive belt)
SKF
SKF 51X65X7CRWA1R CR / HMS / HMSA radial shaft seal
SKF
SKF 7203CD/P4A Super-precision angular contact ball bearing
SKF
SKF PHG864-8M-S450 Timing belt (synchronous drive belt)
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 51800?
- 51800 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 51800.
- What is the HS code for 51800?
- The customs tariff (HS) code for 51800 is 4016.93.
- Who manufactures 51800?
- 51800 is a SKF product in the Seals & Gaskets range.
- Is a datasheet available for 51800?
- Yes — the 51800 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 51800?
- The minimum order quantity is 1.
- Is 51800 available?
- Yes — 51800 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).