Single-row cylindrical roller bearings
NU3128M 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 | 209 mm |
|---|---|
| Abutment dimension db db | 155 mm |
| Bore d | 140 mm |
| Minimum chamfer r12 r12 | 2.1 mm |
| Minimum chamfer r34 r34 | 2.1 mm |
| Maximum fillet ra ra | 2 mm |
| Maximum fillet rb rb | 2 mm |
| Catalogue dynamic load (original symbol) Cr | 390 kN |
| Catalogue static load (original symbol) Cor | 625 kN |
| Mass mass | 10.6 kg |
| Outside diameter D | 225 mm |
| Roller envelope diameter Fw Fw | 162.5 mm |
| Grease-lubricated speed grease | 2600 rpm |
| Oil-lubricated speed oil | 3400 rpm |
| Width B (type-specific) B | 68 mm |
Fields without confirmed values are omitted. Final supply configuration and application suitability require technical confirmation.