SKF UCP318 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. Shaft bore diameter 90 mm, encoded by the SKF designation.
| Type | Pillow block ball bearing unit (UCP / UEP / UKP) |
| Designation | SKF UCP318 |
| Bore d | 90 mm |
| HS code | 8483.20 |
| Shaft bore | 90 mm |
| Shaft diameter | 90 mm |
| Centre height (pillow block) | 118 mm |
| Housing overall width | 96 mm |
| Centre distance between bolt holes | 330.5 mm |
| Bearing width, total | 96 mm |
| Attachment bolt diameter | 27 mm |
| Basic dynamic load rating | 143 kN |
| Basic static load rating | 108 kN |
| Limiting speed | 1950 r/min |
| Note | Limiting speed with shaft tolerance h6 |
| Housing type | Pillow block, normal base |
| Number of bolt holes for fasteners | 2 |
| Fastening bolt hole type | Plain |
| Retaining feature, inner ring | Set screws |
| Bore type | Cylindrical |
| Rubber seating ring | Without |
| Material, housing | Cast iron |
| Material, bearing | Bearing steel |
| Coating | Without |
| Sealing, bearing | Seal and flinger on both sides |
| Sealing type | Contact, standard |
| Sealing, unit | Without |
| Lubricant | Grease |
| Relubrication hole | With |
| Grease fitting | With |
| Product net weight | 23.7 kg |
| eClass code | 23-05-16-02 |
| UNSPSC code | 31171536 |
| Material | As declared by SKF designation suffix |
| Temperature range | Per SKF product data |
| Primary standard | SKF designation convention |
| Dimensions | Shaft bore 90 mm |
| MOQ | 1 |
Interchange with peer OEM equivalents on identical boundary plan and execution — confirm cage, clearance, sealing and precision-class suffix before substitution.