Single-row cylindrical roller bearings
NU1068M Cylindrical Roller Bearing Dimensions & Specifications
NU1068M cylindrical roller bearing: 340 mm bore (d), 520 mm outside diameter (D), 82 mm width (B). Review the available technical values below. Matching dimensions alone do not confirm interchangeability between designations or suffixes.
Technical specifications
| Bore d | 340 mm |
|---|---|
| Outside diameter D | 520 mm |
| Width B | 82 mm |
| Mass | 61.8 kg |
| Catalogue dynamic load Cr | 1080 kN |
| Catalogue static load Cor | 1740 kN |
| Grease-lubricated speed grease | 1000 rpm |
| Oil-lubricated speed oil | 1300 rpm |
Mounting dimensions & additional parameters (7)
| Abutment dimension Da Da | 490 mm |
|---|---|
| Abutment dimension db db | 368 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 | 385 mm |
Fields without confirmed values are omitted. Final supply configuration and application suitability require technical confirmation.
Selection & installation
Which mounting dimensions are listed for NU1068M?
The NU1068M catalogue lists Da = 490 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 NU1068M?
The listed values for NU1068M are grease: 1000 rpm; oil: 1300 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 NU1068M?
The catalogue reference mass for NU1068M is 61.8 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.