22218 EK/C3W64 Bore 90 Mm, Stamped Steel Cages, Spherical Roller Bearings, Double Row
The 22218 EK/C3W64 Double-row spherical roller bearings are suitable for heavy-load, impact, and eccentric conditions. Classic applications include vibrating screen exciters, crushers, fans, paper machine press rolls, mining conveyor equipment, and marine propulsion shafts.
The 22218 EK/C3W64 bearing is a Spherical roller bearings, double row with an inner diameter of 90 mm , an outer diameter of 160 mm, a width of 40 mm. GCr15SiMn rings, GCr15SiMn rolling mlement. It uses C3 standard radial clearance, Open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
22218 EK/C3W64 bearings ( 90 mm x 160 mm x 40 mm) have the advantages of Self-aligning, high load-bearing capacity, impact resistant, and adaptable to heavy loads, and are therefore widely used in the Gearboxes, drive shafts, conveying equipment, general machinery.
| Part Number | 22218 EK/C3W64 |
| Bearing Type | Spherical roller bearings, double row |
| 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 |
| Reference From | SKF 22218 EK/C3W64 |
| Cage | stamped steel cages |
| Seal | Open |
| Internal clearance | C3 |
| Weight [lb] | 7.496 |
| Permissible angular misalignment | 1.5 degrees |
| Heat stabilization | 392 °F (200 °C) |
| Roller bearing type | Spherical |
| Lubrication | W64 = Solid Oil |
| Bore Type | K = Tapered bore, taper 1:12 |
| Principal Dimensions | |
| Inside - d φ [inch] | 3.543 |
| Inside - d φ tolerance | +0.035 mm to 0 |
| Outside - D Φ [inch] | 6.299 |
| Outside - D Φ tolerance | -0.025 mm to 0 |
| Width - B [inch] | 1.575 |
| Width - B tolerance | -0.08 mm to 0 |
| d2 [inch] | 4.173 |
| D1 [inch] | 5.551 |
| b [inch] | 0.236 |
| K [inch] | 0.118 |
| r1,r2(min.) [inch] | 0.079 |
| Performance | |
| Dynamic Radial - Cr [lbf] | 74283 |
| Static Radial - C0r [lbf] | 84256 |
| Speed ratings (oil) - nG [rpm] | 5273 |
The 22218 EK/C3W64 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.
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