Single-row cylindrical roller bearings
NU1992 Cylindrical Roller Bearing Dimensions & Specifications
NU1992 cylindrical roller bearing: 460 mm bore (d), 620 mm outside diameter (D), 74 mm width (B). Review the available technical values below. Matching dimensions alone do not confirm interchangeability between designations or suffixes.
Technical specifications
| Bore d | 460 mm |
|---|---|
| Outside diameter D | 620 mm |
| Width B | 74 mm |
| Mass | 63.2 kg |
| Catalogue dynamic load Cr | 1170 kN |
| Catalogue static load Cor | 2260 kN |
| Grease-lubricated speed grease | 800 rpm |
| Oil-lubricated speed oil | 950 rpm |
Mounting dimensions & additional parameters (7)
| Abutment dimension Da Da | 591 mm |
|---|---|
| Abutment dimension db db | 486 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 | 500 mm |
Fields without confirmed values are omitted. Final supply configuration and application suitability require technical confirmation.
Selection & installation
Which mounting dimensions are listed for NU1992?
The NU1992 catalogue lists Da = 591 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 NU1992?
The listed values for NU1992 are grease: 800 rpm; oil: 950 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 NU1992?
The catalogue reference mass for NU1992 is 63.2 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.