Single-row cylindrical roller bearings
NU2288 Cylindrical Roller Bearing Dimensions & Specifications
NU2288 cylindrical roller bearing: 440 mm bore (d), 790 mm outside diameter (D), 200 mm width (B). Review the available technical values below. Matching dimensions alone do not confirm interchangeability between designations or suffixes.
Technical specifications
| Bore d | 440 mm |
|---|---|
| Outside diameter D | 790 mm |
| Width B | 200 mm |
| Mass | 446 kg |
| Catalogue dynamic load Cr | 4850 kN |
| Catalogue static load Cor | 8650 kN |
| Grease-lubricated speed grease | 700 rpm |
| Oil-lubricated speed oil | 850 rpm |
Mounting dimensions & additional parameters (7)
| Abutment dimension Da Da | 742 mm |
|---|---|
| Abutment dimension db db | 482 mm |
| Minimum chamfer r12 r12 | 7.5 mm |
| Minimum chamfer r34 r34 | 7.5 mm |
| Maximum fillet ra ra | 6 mm |
| Maximum fillet rb rb | 6 mm |
| Roller envelope diameter Fw Fw | 530 mm |
Fields without confirmed values are omitted. Final supply configuration and application suitability require technical confirmation.
Selection & installation
Which mounting dimensions are listed for NU2288?
The NU2288 catalogue lists Da = 742 mm; ra ≤ 6 mm. Check these symbols against the bearing drawing and the shaft/housing shoulders; they are not shaft or housing fit tolerances.
What speed values are available for NU2288?
The listed values for NU2288 are grease: 700 rpm; oil: 850 rpm. These catalogue references do not determine a safe operating speed on their own. Confirm load, clearance, lubrication and heat conditions for the application.
What is the reference mass of NU2288?
The catalogue reference mass for NU2288 is 446 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.