Single-row cylindrical roller bearings
NU19/500 Cylindrical Roller Bearing Dimensions & Specifications
NU19/500 cylindrical roller bearing: 500 mm bore (d), 670 mm outside diameter (D), 78 mm width (B). Review the available technical values below. Matching dimensions alone do not confirm interchangeability between designations or suffixes.
Technical specifications
| Bore d | 500 mm |
|---|---|
| Outside diameter D | 670 mm |
| Width B | 78 mm |
| Mass | 79.0 kg |
| Catalogue dynamic load Cr | 1190 kN |
| Catalogue static load Cor | 2120 kN |
| Grease-lubricated speed grease | 750 rpm |
| Oil-lubricated speed oil | 900 rpm |
Mounting dimensions & additional parameters (7)
| Abutment dimension Da Da | 648 mm |
|---|---|
| Abutment dimension db db | 529 mm |
| Minimum chamfer r12 r12 | 5 mm |
| Minimum chamfer r34 r34 | 5 mm |
| Maximum fillet ra ra | 4 mm |
| Maximum fillet rb rb | 4 mm |
| Roller envelope diameter Fw Fw | 544 mm |
Fields without confirmed values are omitted. Final supply configuration and application suitability require technical confirmation.
Selection & installation
Which mounting dimensions are listed for NU19/500?
The NU19/500 catalogue lists Da = 648 mm; ra ≤ 4 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 NU19/500?
The listed values for NU19/500 are grease: 750 rpm; oil: 900 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 NU19/500?
The catalogue reference mass for NU19/500 is 79.0 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.