22311E/C2
Medium cross-section spherical roller bearings with higher load capacity than 22200 series for the same bore. Larger OD and greater width provide significantly more radial capacity. Standard sizes start at 22308 (40mm bore).
SKF22311 E55 × 120 × 43mm
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$263.19
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Geometry100%
55 × 120 × 43mm
Sealing100%
Open (no seal)
Load rating100%
Cr 280 kN / C₀r 280 kN
Speed100%
4,300 rpm (grease)
Specifications
| Bore diameter (d) | 55 mm |
| Outer diameter (D) | 120 mm |
| Width (B) | 43 mm |
| Dynamic load rating (C) | 280 kN |
| Static load rating (C₀) | 280 kN |
| Weight | 2350 g |
| Max speed (grease) | 4,300 rpm |
| Max speed (oil) | 5,600 rpm |
Why This Match Is Correct
✓Exact dimensional match (bore, OD, width)
✓Load ratings within tolerance
✓Seal type verified via manufacturer tables
✓Speed rating compatible
Equivalents Across Brands
| Brand | Part Number | Seal | Clearance | Status |
|---|---|---|---|---|
| SKF | 22311 E | Open | CN | Probable |
| FAG | 22311-E1-XL | Open | CN | Probable |
| NSK | 22311EAE4 | Open | CN | Probable |
| NTN | 22311EMD1 | Open | CN | Probable |
| Timken | 22311EM | Open | CN | Probable |
Internal Clearance
Normal Clearance (CN)
Standard radial internal clearance. Suitable for most applications under normal operating conditions.
Best forGeneral-purpose use. Normal temperatures, standard fits, moderate speeds.
TemperatureUp to ~70°C operating temperature
Seal Type
Open (No Seal)
No seals or shields. Allows external lubrication and cooling. Lowest friction, highest speed capability.
Best forClean environments with external lubrication systems. High-speed applications where heat dissipation matters.
Avoid forDirty, dusty, or wet environments. Applications without planned lubrication maintenance.
Examples
- Machine tool spindles
- Gearboxes with oil bath lubrication
- High-speed precision equipment
Where This Bearing Is Used
Heavy gearboxesContinuous casting machinesRolling millsMarine propulsionCrusher equipmentLarge industrial fansOffshore drilling equipmentLarge electric motors (50+ HP)Industrial gearboxesHeavy-duty conveyor systemsMining and construction equipmentPaper mill machinerySteel rolling millsLarge compressorsWind turbine components
SteelMarineMiningOil & gas
Other Variants Available
Same bearing geometry — different seal and clearance configurations.
| SKF Part Number | Seal Type | Clearance |
|---|---|---|
| 22311 E | Open (No Seal) | CN |
| 22311 E/C3 | Open (No Seal) | C3 |