Single-row cylindrical roller bearings
NF328M Cylindrical Roller Bearing Dimensions & Specifications
NF328M cylindrical roller bearing: 140 mm bore (d), 300 mm outside diameter (D), 62 mm width (B). Review the available technical values below. Matching dimensions alone do not confirm interchangeability between designations or suffixes.
Technical specifications
| Bore d | 140 mm |
|---|---|
| Outside diameter D | 300 mm |
| Width B | 62 mm |
| Mass | 22.8 kg |
| Catalogue dynamic load Cr | 610 kN |
| Catalogue static load Cor | 805 kN |
| Grease-lubricated speed grease | 1900 rpm |
| Oil-lubricated speed oil | 2400 rpm |
Mounting dimensions & additional parameters (7)
| Abutment dimension Db Db | 278 mm |
|---|---|
| Abutment dimension da da | 160 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 Ew Ew | 260 mm |
Fields without confirmed values are omitted. Final supply configuration and application suitability require technical confirmation.
Selection & installation
Which mounting dimensions are listed for NF328M?
The NF328M catalogue lists da = 160 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 NF328M?
The listed values for NF328M 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 NF328M?
The catalogue reference mass for NF328M is 22.8 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.