SKF NU311ECML bearings
SKF single row cylindrical roller bearings, NU design, SKF Explorer
- Measurement system
- Metric
- Bore diameter
- 55.000 mm
- Outside diameter
- 120.000 mm
- Width
- 29.000 mm
- Cr
- 156000 N
- C0r
- 143000 N
- Limiting speed
- 11000 r/min
- Net weight
- 1.62 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 NU311ECML
| Part Number | NU311ECML | |
|---|---|---|
| Description | SKF single row cylindrical roller bearings, NU design, SKF Explorer | |
| 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 | 55.0 mm | Bore diameter |
| D | 120.0 mm | Outside diameter |
| B | 29.0 mm | Width |
| D1 | ≈101 mm | Shoulder diameter outer ring |
| F | 70.5 mm | Raceway diameter of inner ring |
| r1,2 | min. 2 mm | Chamfer dimension |
| r3,4 | min. 2 mm | Chamfer dimension |
| s | max. 2 mm | Permissible axial displacement |
| Abutment dimensions | ||
| da | min. 65 mm | Diameter of spacer sleeve |
| da | max. 68 mm | Diameter of spacer sleeve |
| db | min. 73 mm | Diameter of shaft abutment |
| Da | max. 109.2 mm | Diameter of housing abutment |
| ra | max. 2 mm | Radius of fillet |
| rb | max. 2 mm | Radius of fillet |
| Calculation data | ||
| C | 156.0 kN | Basic dynamic load rating |
| C0 | 143.0 kN | Basic static load rating |
| Pu | 18.6 kN | Fatigue load limit |
| 11000.0 r/min | Limiting speed | |
| 6000.0 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 NU311ECML:
- Bore diameter: 55.0 mm
- Outside diameter: 120.0 mm
- Width: 29.0 mm
- Basic dynamic load rating: 156.0 kN
- Basic static load rating: 143.0 kN
- Limiting speed: 11000.0 r/min
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