SKF NU338ECM bearings
SKF single row cylindrical roller bearings, NU design
- Measurement system
- Metric
- Bore diameter
- 190.000 mm
- Outside diameter
- 400.000 mm
- Width
- 78.000 mm
- Cr
- 1140000 N
- C0r
- 1500000 N
- Limiting speed
- 2000 r/min
- Net weight
- 50.0 kg
- Number of rows
- 1
- Sealing
- Without
- Cage
- Machined brass
- Bearing material
- Steel
- Rolling material
- Steel
- Tolerance class
- Normal (PN)
- Internal clearance
- CN
- Lubricant in bearing
- None
- Relubrication feature
- Without
- Coating
- Without
In stock
Technical specification for SKF NU338ECM
| Part Number | NU338ECM | |
|---|---|---|
| Description | SKF single row cylindrical roller bearings, NU design | |
| Number of rows | 1 | |
| Number of flanges, outer ring | 2 | |
| Number of flanges, inner ring | 0 | |
| Cage | Machined brass | |
| Radial internal clearance | CN | |
| Tolerance class | Normal | |
| Dimensions | ||
| d | 190.0 mm | Bore diameter |
| D | 400.0 mm | Outside diameter |
| B | 78.0 mm | Width |
| D1 | ≈336.3 mm | Shoulder diameter outer ring |
| F | 245 mm | Raceway diameter of inner ring |
| r1,2 | min. 5 mm | Chamfer dimension |
| r3,4 | min. 5 mm | Chamfer dimension |
| s | max. 4.3 mm | Permissible axial displacement |
| Abutment dimensions | ||
| da | min. 210 mm | Diameter of spacer sleeve |
| da | max. 240 mm | Diameter of spacer sleeve |
| db | min. 249 mm | Diameter of shaft abutment |
| Da | max. 380 mm | Diameter of housing abutment |
| ra | max. 4 mm | Radius of fillet |
| rb | max. 4 mm | Radius of fillet |
| Calculation data | ||
| C | 1140.0 kN | Basic dynamic load rating |
| C0 | 1500.0 kN | Basic static load rating |
| Pu | 143 kN | Fatigue load limit |
| 2000.0 r/min | Limiting speed | |
| 1500.0 r/min | Reference speed | |
Single row cylindrical roller bearings are designed to accommodate high radial loads in combination with high speeds. Having two integral flanges on the outer ring and no flanges on the inner ring, NU design bearings can accommodate axial displacement in both directions. An important feature is the separable design, which facilitates mounting and enables the bearing components to be interchanged.
Dimensions and Performance of SKF NU338ECM:
- Bore diameter: 190.0 mm
- Outside diameter: 400.0 mm
- Width: 78.0 mm
- Basic dynamic load rating: 1140.0 kN
- Basic static load rating: 1500.0 kN
- Limiting speed: 2000.0 r/min
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