Single-row cylindrical roller bearings
NJ18/560 Cylindrical Roller Bearing Dimensions & Specifications
NJ18/560 cylindrical roller bearing: 560 mm bore (d), 680 mm outside diameter (D), 56 mm width (B). Review the available technical values below. Matching dimensions alone do not confirm interchangeability between designations or suffixes.
Technical specifications
| Bore d | 560 mm |
|---|---|
| Outside diameter D | 680 mm |
| Width B | 56 mm |
| Mass | 44.5 kg |
| Catalogue dynamic load Cr | 780 kN |
| Catalogue static load Cor | 1750 kN |
| Grease-lubricated speed grease | 700 rpm |
| Oil-lubricated speed oil | 850 rpm |
Mounting dimensions & additional parameters (7)
| Abutment dimension Da Da | 647 mm |
|---|---|
| Abutment dimension db db | 584 mm |
| Minimum chamfer r12 r12 | 3 mm |
| Minimum chamfer r34 r34 | 3 mm |
| Maximum fillet ra ra | 2.5 mm |
| Maximum fillet rb rb | 2.5 mm |
| Roller envelope diameter Fw Fw | 591 mm |
Fields without confirmed values are omitted. Final supply configuration and application suitability require technical confirmation.
Selection & installation
Which mounting dimensions are listed for NJ18/560?
The NJ18/560 catalogue lists Da = 647 mm; ra ≤ 2.5 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 NJ18/560?
The listed values for NJ18/560 are grease: 700 rpm; oil: 850 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 NJ18/560?
The catalogue reference mass for NJ18/560 is 44.5 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.