Single-row cylindrical roller bearings
NJ2236EM Cylindrical Roller Bearing Dimensions & Specifications
NJ2236EM cylindrical roller bearing: 180 mm bore (d), 320 mm outside diameter (D), 86 mm width (B). Review the available technical values below. Matching dimensions alone do not confirm interchangeability between designations or suffixes.
Technical specifications
| Bore d | 180 mm |
|---|---|
| Outside diameter D | 320 mm |
| Width B | 86 mm |
| Mass | 31.0 kg |
| Catalogue dynamic load Cr | 1010 kN |
| Catalogue static load Cor | 1510 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 | 200 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 | 215 mm |
Fields without confirmed values are omitted. Final supply configuration and application suitability require technical confirmation.
Selection & installation
Which mounting dimensions are listed for NJ2236EM?
The NJ2236EM 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 NJ2236EM?
The listed values for NJ2236EM 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 NJ2236EM?
The catalogue reference mass for NJ2236EM is 31.0 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.