Single-row cylindrical roller bearings
N230M Cylindrical Roller Bearing Dimensions & Specifications
N230M cylindrical roller bearing: 150 mm bore (d), 270 mm outside diameter (D), 45 mm width (B). Review the available technical values below. Matching dimensions alone do not confirm interchangeability between designations or suffixes.
Technical specifications
| Bore d | 150 mm |
|---|---|
| Outside diameter D | 270 mm |
| Width B | 45 mm |
| Mass | 11.6 kg |
| Catalogue dynamic load Cr | 395 kN |
| Catalogue static load Cor | 580 kN |
| Grease-lubricated speed grease | 2000 rpm |
| Oil-lubricated speed oil | 2600 rpm |
Mounting dimensions & additional parameters (5)
| 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 Ew Ew | 238 mm |
Fields without confirmed values are omitted. Final supply configuration and application suitability require technical confirmation.
Selection & installation
Which mounting dimensions are listed for N230M?
The N230M catalogue lists 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 N230M?
The listed values for N230M are grease: 2000 rpm; oil: 2600 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 N230M?
The catalogue reference mass for N230M is 11.6 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.

