Single-row cylindrical roller bearings
NJ330EM Cylindrical Roller Bearing Dimensions & Specifications
NJ330EM cylindrical roller bearing: 150 mm bore (d), 320 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 | 150 mm |
|---|---|
| Outside diameter D | 320 mm |
| Width B | 65 mm |
| Mass | 27.2 kg |
| Catalogue dynamic load Cr | 750 kN |
| Catalogue static load Cor | 1020 kN |
| Grease-lubricated speed grease | 1700 rpm |
| Oil-lubricated speed oil | 2000 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 NJ330EM?
The NJ330EM 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 NJ330EM?
The listed values for NJ330EM are grease: 1700 rpm; oil: 2000 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 NJ330EM?
The catalogue reference mass for NJ330EM is 27.2 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.