Single-row cylindrical roller bearings
NJ3330M Cylindrical Roller Bearing Dimensions & Specifications
NJ3330M cylindrical roller bearing: 150 mm bore (d), 320 mm outside diameter (D), 128 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 | 320 mm |
| Width B | 128 mm |
| Mass | 51 kg |
| Catalogue dynamic load Cr | 1250 kN |
| Catalogue static load Cor | 1900 kN |
| Grease-lubricated speed grease | 1400 rpm |
| Oil-lubricated speed oil | 1800 rpm |
Mounting dimensions & additional parameters (7)
| Abutment dimension Da Da | 297 mm |
|---|---|
| Abutment dimension db db | 170 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 | 193 mm |
Fields without confirmed values are omitted. Final supply configuration and application suitability require technical confirmation.
Selection & installation
Which mounting dimensions are listed for NJ3330M?
The NJ3330M catalogue lists Da = 297 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 NJ3330M?
The listed values for NJ3330M are grease: 1400 rpm; oil: 1800 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 NJ3330M?
The catalogue reference mass for NJ3330M is 51 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.