Single-row cylindrical roller bearings
NU20/750 Cylindrical Roller Bearing Dimensions & Specifications
NU20/750 cylindrical roller bearing: 750 mm bore (d), 1090 mm outside diameter (D), 195 mm width (B). Review the available technical values below. Matching dimensions alone do not confirm interchangeability between designations or suffixes.
Technical specifications
| Bore d | 750 mm |
|---|---|
| Outside diameter D | 1090 mm |
| Width B | 195 mm |
| Mass | 635 kg |
| Catalogue dynamic load Cr | 6700 kN |
| Catalogue static load Cor | 13800 kN |
| Grease-lubricated speed grease | 360 rpm |
| Oil-lubricated speed oil | 430 rpm |
Mounting dimensions & additional parameters (7)
| Abutment dimension Da Da | 1057 mm |
|---|---|
| Abutment dimension db db | 783 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 | 832 mm |
Fields without confirmed values are omitted. Final supply configuration and application suitability require technical confirmation.
Selection & installation
Which mounting dimensions are listed for NU20/750?
The NU20/750 catalogue lists Da = 1057 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 NU20/750?
The listed values for NU20/750 are grease: 360 rpm; oil: 430 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 NU20/750?
The catalogue reference mass for NU20/750 is 635 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.