Single-row cylindrical roller bearings
NF324M Cylindrical Roller Bearing Dimensions & Specifications
NF324M cylindrical roller bearing: 120 mm bore (d), 260 mm outside diameter (D), 55 mm width (B). Review the available technical values below. Matching dimensions alone do not confirm interchangeability between designations or suffixes.
Technical specifications
| Bore d | 120 mm |
|---|---|
| Outside diameter D | 260 mm |
| Width B | 55 mm |
| Mass | 14.3 kg |
| Catalogue dynamic load Cr | 476 kN |
| Catalogue static load Cor | 605 kN |
| Grease-lubricated speed grease | 1900 rpm |
| Oil-lubricated speed oil | 2400 rpm |
Mounting dimensions & additional parameters (7)
| Abutment dimension Db Db | 242 mm |
|---|---|
| Abutment dimension da da | 136 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 Ew Ew | 226 mm |
Fields without confirmed values are omitted. Final supply configuration and application suitability require technical confirmation.
Selection & installation
Which mounting dimensions are listed for NF324M?
The NF324M catalogue lists da = 136 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 NF324M?
The listed values for NF324M are grease: 1900 rpm; oil: 2400 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 NF324M?
The catalogue reference mass for NF324M is 14.3 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.