SKF 3751 CR / HMS / HMSA radial shaft seal
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Product Description
SKF 3751 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 3751 HS code: 4016.93 Shaft diameter: 9.53 mm Housing bore diameter: 25.37 mm Seal width: 6.35 mm Limiting speed: 2220 r/min Maximum operating temperature: 100 °C minimum operating temperature: -40 °C Permissible circumferential speed: 1.1 m/s Rotational speed: 2220 r/min Design: CRW1 Auxiliary lip: No Sealing lip material: Nitrile rubber (NBR) Type of outside diameter: Metal-cased Unit system: Inch Product net weight: 0.0045 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 3751
- Trelleborg 3751
- Chesterton 3751
- Garlock 3751
- National 3751
- Equivalent: 3751 (Freudenberg)
- Equivalent: 3751 (Trelleborg)
- Equivalent: 3751 (Chesterton)
- Equivalent: 3751 (Garlock)
- Equivalent: 3751 (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
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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 3751?
- 3751 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 3751.
- What is the HS code for 3751?
- The customs tariff (HS) code for 3751 is 4016.93.
- Who manufactures 3751?
- 3751 is a SKF product in the Seals & Gaskets range.
- Is a datasheet available for 3751?
- Yes — the 3751 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 3751?
- The minimum order quantity is 1.
- Is 3751 available?
- Yes — 3751 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).