Single-row cylindrical roller bearings
NU1980M Cylindrical Roller Bearing Dimensions & Specifications
NU1980M cylindrical roller bearing: 400 mm bore (d), 540 mm outside diameter (D), 65 mm width (B). Review the available technical values below. Matching dimensions alone do not confirm interchangeability between designations or suffixes.
Technical specifications
| Bore d | 400 mm |
|---|---|
| Outside diameter D | 540 mm |
| Width B | 65 mm |
| Mass | 43 kg |
| Catalogue dynamic load Cr | 785 kN |
| Catalogue static load Cor | 1520 kN |
| Grease-lubricated speed grease | 1000 rpm |
| Oil-lubricated speed oil | 1200 rpm |
Mounting dimensions & additional parameters (8)
| Abutment dimension Da Da | 513 mm |
|---|---|
| Abutment dimension db db | 425 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 Ew Ew | 502 mm |
| Roller envelope diameter Fw Fw | 438 mm |
Fields without confirmed values are omitted. Final supply configuration and application suitability require technical confirmation.
Selection & installation
Which mounting dimensions are listed for NU1980M?
The NU1980M catalogue lists Da = 513 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 NU1980M?
The listed values for NU1980M are grease: 1000 rpm; oil: 1200 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 NU1980M?
The catalogue reference mass for NU1980M is 43 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.