Single-row cylindrical roller bearings
NJ1056M Cylindrical Roller Bearing Dimensions & Specifications
NJ1056M cylindrical roller bearing: 280 mm bore (d), 420 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 | 280 mm |
|---|---|
| Outside diameter D | 420 mm |
| Width B | 65 mm |
| Mass | 32.2 kg |
| Catalogue dynamic load Cr | 660 kN |
| Catalogue static load Cor | 1050 kN |
| Grease-lubricated speed grease | 1400 rpm |
| Oil-lubricated speed oil | 1700 rpm |
Mounting dimensions & additional parameters (7)
| Abutment dimension Da Da | 395 mm |
|---|---|
| Abutment dimension db db | 302 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 | 316 mm |
Fields without confirmed values are omitted. Final supply configuration and application suitability require technical confirmation.
Selection & installation
Which mounting dimensions are listed for NJ1056M?
The NJ1056M catalogue lists Da = 395 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 NJ1056M?
The listed values for NJ1056M are grease: 1400 rpm; oil: 1700 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 NJ1056M?
The catalogue reference mass for NJ1056M is 32.2 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.