Single-row cylindrical roller bearings
NJ1984M Cylindrical Roller Bearing Dimensions & Specifications
NJ1984M cylindrical roller bearing: 420 mm bore (d), 560 mm outside diameter (D), 65 mm width (B). Review the available technical values below. Matching dimensions alone do not confirm interchangeability between designations or suffixes.
Technical specifications
| Bore d | 420 mm |
|---|---|
| Outside diameter D | 560 mm |
| Width B | 65 mm |
| Mass | 47.4 kg |
| Catalogue dynamic load Cr | 830 kN |
| Catalogue static load Cor | 1660 kN |
| Grease-lubricated speed grease | 900 rpm |
| Oil-lubricated speed oil | 1100 rpm |
Mounting dimensions & additional parameters (7)
| Abutment dimension Da Da | 533 mm |
|---|---|
| Abutment dimension db db | 445 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 | 458 mm |
Fields without confirmed values are omitted. Final supply configuration and application suitability require technical confirmation.
Selection & installation
Which mounting dimensions are listed for NJ1984M?
The NJ1984M catalogue lists Da = 533 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 NJ1984M?
The listed values for NJ1984M are grease: 900 rpm; oil: 1100 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 NJ1984M?
The catalogue reference mass for NJ1984M is 47.4 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.