Single-row cylindrical roller bearings
NU228EM Bearing Dimensions & Specifications
Review available bearing dimensions and technical specifications. Retain the complete designation and suffix when comparing a replacement.
Technical specifications
| Abutment dimension Da Da | 232 mm |
|---|---|
| Abutment dimension db db | 157 mm |
| Bore d | 140 mm |
| Minimum chamfer r12 r12 | 3 mm |
| Minimum chamfer r34 r34 | 3 mm |
| Maximum fillet ra ra | 2.5 mm |
| Maximum fillet rb rb | 2.5 mm |
| Catalogue dynamic load (original symbol) Cr | 395 kN |
| Catalogue static load (original symbol) Cor | 515 kN |
| Mass mass | 9.36 kg |
| Outside diameter D | 250 mm |
| Roller envelope diameter Fw Fw | 169 mm |
| Grease-lubricated speed grease | 2400 rpm |
| Oil-lubricated speed oil | 3000 rpm |
| Width B (type-specific) B | 42 mm |
Fields without confirmed values are omitted. Final supply configuration and application suitability require technical confirmation.