22320 E/C3 bearings ( 100 mm x 215 mm x 73 mm) have the advantages of Self-aligning, extremely strong load-bearing capacity, and impact resistant, and are therefore widely used in the Heavy-duty speed reducers, low-speed rolling mills, and medium-sized mining equipment.

| Part Number | 22320 E/C3 |
| Manufacturer Part Code | 22320E/C3 |
| Internal design | E = Optimized internal design for increased load carrying capacity, Flangeless inner ring and two stamped steel cages Annular groove and three lubrication holes in the outer ring, Guide ring centred on the cage |
| Bearing Type | Spherical roller bearings, double row |
| m Weight [lb] | 29.762 |
| Seal type | open |
| Series | 223..-E |
| Cage | stamped steel cages |
| Bore Type | Z = cylindrical bore |
| Radial internal clearance | C3 |
| Units | Metric |
| Cr Dynamic Radial [lbf] | 189248 |
| C0r Static Radial [lbf] | 212386 |
| Pu Fatigue Radial [lbf] | 18646 |
| Operating temperature - T(min) [°C] | -30 |
| Operating temperature - T(max) [°C] | +200 |
| nB Speed ratings (grease) [rpm] | 2384 |
| nG Speed ratings (oil) [rpm] | 2955 |
| Heat stabilization | 392 °F (200 °C) |
| Dimension | |
| d φ Inside [inch] | 3.937 |
| D Φ Outside [inch] | 8.465 |
| B Width [inch] | 2.874 |
| b [inch] | 0.437 |
| K [inch] | 0.236 |
| d2 [inch] | 5.118 |
| D1 [inch] | 7.244 |
| ra(max.) Fillet [inch] | 0.098 |
| r1,r2(min.) Fillet [inch] | 0.118 |
| Angular misalignment | 2 degrees |
| Abutment dimensions | |
| da(min.) [inch] | 4.488 |
| Da(max.) [inch] | 7.913 |
| Calculation factor | |
| e | 0.33 |
| Y1 | 2 |
| Y2 | 3 |
| Y0 | 2 |
The 22320 E/C3 Double-row spherical roller bearings mainly consist of an inner ring, an outer ring, two rows of spherical rollers, a cage, and seals. The outer ring raceway has a spherical structure, while the inner ring has a double-row raceway. The rollers and raceways are logarithmically curved. The cage is typically made of stamped steel or machined brass.
Double-row spherical roller bearings possess excellent self-aligning properties, compensating for shaft deflection, installation errors, and misalignment. They can simultaneously withstand radial loads and bidirectional axial loads, exhibiting extremely high load-bearing capacity and strong impact resistance. Furthermore, the internal clearance can be optimized for vibration conditions, effectively reducing frictional temperature rise.















