Single-row cylindrical roller bearings
NU2988 Cylindrical Roller Bearing Dimensions & Specifications
NU2988 cylindrical roller bearing: 440 mm bore (d), 600 mm outside diameter (D), 95 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 | 600 mm |
| Width B | 95 mm |
| Mass | 79.9 kg |
| Catalogue dynamic load Cr | 1300 kN |
| Catalogue static load Cor | 2760 kN |
| Grease-lubricated speed grease | 900 rpm |
| Oil-lubricated speed oil | 1100 rpm |
Mounting dimensions & additional parameters (7)
| Abutment dimension Da Da | 572 mm |
|---|---|
| Abutment dimension db db | 466 mm |
| Minimum chamfer r12 r12 | 4 mm |
| Minimum chamfer r34 r34 | 4 mm |
| Maximum fillet ra ra | 3 mm |
| Maximum fillet rb rb | 3 mm |
| Roller envelope diameter Fw Fw | 484 mm |
Fields without confirmed values are omitted. Final supply configuration and application suitability require technical confirmation.
Selection & installation
Which mounting dimensions are listed for NU2988?
The NU2988 catalogue lists Da = 572 mm; ra ≤ 3 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 NU2988?
The listed values for NU2988 are grease: 900 rpm; oil: 1100 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 NU2988?
The catalogue reference mass for NU2988 is 79.9 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.