Single-row cylindrical roller bearings
NU1976M Cylindrical Roller Bearing Dimensions & Specifications
NU1976M cylindrical roller bearing: 380 mm bore (d), 520 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 | 380 mm |
|---|---|
| Outside diameter D | 520 mm |
| Width B | 65 mm |
| Mass | 41.2 kg |
| Catalogue dynamic load Cr | 775 kN |
| Catalogue static load Cor | 1470 kN |
| Grease-lubricated speed grease | 950 rpm |
| Oil-lubricated speed oil | 1200 rpm |
Mounting dimensions & additional parameters (7)
| Abutment dimension Da Da | 493 mm |
|---|---|
| Abutment dimension db db | 404 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 | 418 mm |
Fields without confirmed values are omitted. Final supply configuration and application suitability require technical confirmation.
Selection & installation
Which mounting dimensions are listed for NU1976M?
The NU1976M catalogue lists Da = 493 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 NU1976M?
The listed values for NU1976M are grease: 950 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 NU1976M?
The catalogue reference mass for NU1976M is 41.2 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.