SKF SYK504 pillow block ball bearing unit (ucp / uep / ukp). Two-bolt pillow-block cast-iron, SG-iron or thermoplastic housing pre-assembled with a spherical-outer-ring insert bearing. Absorbs shaft-to-support misalignment during assembly and in service. Standard shaft attachment is set-screw (UCP); eccentric locking collar (UEP) and adapter-sleeve (UKP) variants available. Dimensioned to ISO 3228 / DIN 626.
| Type | Pillow block ball bearing unit (UCP / UEP / UKP) |
| Designation | SKF SYK504 |
| Bore d | 20 mm |
| HS code | 8483.20 |
| Spherical seating diameter | 47 mm |
| Centre height (pillow block) | 33.3 mm |
| Housing overall width | 32 mm |
| Centre distance between bolt holes | 96.5 mm |
| Housing type | Pillow block, normal base |
| Number of bolt holes for fasteners | 2 |
| Fastening bolt hole type | Plain |
| Material, housing | Composite |
| Coating | Without |
| Relubrication hole | Without |
| Grease fitting | Without |
| Product net weight | 0.105 kg |
| eClass code | 23-05-08-02 |
| UNSPSC code | 31171536 |
| Material | As declared by SKF designation suffix |
| Temperature range | Per SKF product data |
| Primary standard | SKF designation convention |
| MOQ | 1 |
Interchange with peer OEM equivalents on identical boundary plan and execution — confirm cage, clearance, sealing and precision-class suffix before substitution.