SKF FYK504 Composite flanged housing, square
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Product Description
SKF FYK504 flanged ball bearing unit (ucf / ucfc / ucfl). Square four-bolt (UCF), round three-bolt (UCFC) or oval two-bolt (UCFL) flanged housing pre-assembled with a spherical-outer-ring insert bearing. Absorbs shaft-to-housing misalignment on assembly. Set-screw shaft attachment on standard UC-series insert; eccentric-collar (UEL) or adapter-sleeve (UK) variants available. Dimensioned to ISO 3228 / DIN 626.
Technical Specifications
- Type
- Flanged ball bearing unit (UCF / UCFC / UCFL)
- Designation
- SKF FYK504
- Bore d
- 20 mm
- HS code
- 8483.20
- Spherical seating diameter
- 47 mm
- Housing overall width
- 30 mm
- Centre distance between bolt holes
- 63.5 mm
- Housing type
- Flanged
- Flanged housing type
- Square
- Number of bolt holes for fasteners
- 4
- Fastening bolt hole type
- Plain
- Material, housing
- Composite
- Coating
- Without
- Relubrication hole
- Without
- Grease fitting
- Without
- Product net weight
- 0.118 kg
- eClass code
- 23-05-08-02
- UNSPSC code
- 31171536
Standards & Compliance
- Standard
- SKF designation convention
- Material
- As declared by SKF designation suffix
- Temperature Range
- Per SKF product data
- HS Code
- 8483.20
Cross References
- NTN 504
- NSK 504
- FAG 504
- Koyo 504
- ASAHI 504
- Alt. designation FYK 504
- Equivalent: 504 (NTN)
- Equivalent: 504 (NSK)
- Equivalent: 504 (FAG)
- Equivalent: 504 (Koyo)
- Equivalent: 504 (ASAHI)
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: 2026-09-30. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy FYK504?
- FYK504 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 FYK504.
- What is the HS code for FYK504?
- The customs tariff (HS) code for FYK504 is 8483.20.
- Who manufactures FYK504?
- FYK504 is a SKF product in the Bearings & Power Transmission range.
- Is a datasheet available for FYK504?
- Yes — the FYK504 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for FYK504?
- The minimum order quantity is 1.
- Is FYK504 available?
- Yes — FYK504 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).