22308 E/VA405 Spherical Roller Bearings, Stamped Steel Cages
The 22308 E/VA405 Spherical roller bearings are suitable for harsh working conditions with high humidity, dust, and strong vibration and impact. Classic applications include vibrating screen exciters, crushers, vibrating motors, vibrating rollers, mining vibrating machinery, and saw frames, among other vibrating equipment.
The 22308 E/VA405 bearing is a Spherical roller bearings for vibratory applications with an inner diameter of 40 mm , an outer diameter of 90 mm, a width of 33 mm. High-carbon chromium steel rings, High-carbon chromium steel rolling mlement. Its dynamic radial rated load is approximately 154889 N, its static radial rated load is approximately 139889 N. It uses Normal standard radial clearance, open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
22308 E/VA405 bearings ( 40 mm x 90 mm x 33 mm) have the advantages of Vibration resistant, impact resistant, high temperature resistant, self-aligning, and are therefore widely used in the Heavy-duty vibrating screens for mining, metallurgy, construction, and coal industries..
| Part Number | 22308 E/VA405 |
| Manufacturer Part Code | 22308E/VA405 |
| 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 inner ring |
| Bearing Type | Spherical roller bearings for vibratory applications |
| Application | Shaker screen |
| m Weight [lb] | 2.315 |
| Seal type | open |
| Series | 223..-E/VA405 |
| Cage | stamped steel cages |
| Bore Type | Z = cylindrical bore |
| Radial internal clearance | Normal |
| Units | Metric |
| Other variants | VA405 = Bearing for vibratory applications, surface-hardened stamped steel cages |
| Acceleration for oil lubrication(rotational) | 115 g |
| Acceleration for oil lubrication(linear) | 31 g |
| Cr Dynamic Radial [lbf] | 34819 |
| C0r Static Radial [lbf] | 31447 |
| Pu Fatigue Radial [lbf] | 3365 |
| Operating temperature - T(min) [°C] | -30 |
| Operating temperature - T(max) [°C] | +200 |
| nB Speed ratings (grease) [rpm] | 5953 |
| nG Speed ratings (oil) [rpm] | 7985 |
| Heat stabilization | 392 °F (200 °C) |
| Dimension | |
| d φ Inside [inch] | 1.575 |
| D Φ Outside [inch] | 3.543 |
| B Width [inch] | 1.299 |
| b [inch] | 0.236 |
| K [inch] | 0.118 |
| d2 [inch] | 1.965 |
| D1 [inch] | 2.925 |
| ra(max.) Fillet [inch] | 0.059 |
| r1,r2(min.) Fillet [inch] | 0.059 |
| Angular misalignment | 2 degrees |
| Abutment dimensions | |
| da(min.) [inch] | 1.929 |
| Da(max.) [inch] | 3.189 |
| Calculation factor | |
| e | 0.37 |
| Y1 | 1.8 |
| Y2 | 2.7 |
| Y0 | 1.8 |
The 22308 E/VA405 Spherical roller bearings mainly consist of an inner ring, an outer ring, two rows of drum-shaped rollers, and a cage. The outer ring raceway has a spherical structure, while the inner ring has a double-row raceway. The cage is typically a machined brass or stamped steel solid structure guided by the outer ring to adapt to high-frequency vibration conditions.
Spherical roller bearings possess self-aligning properties, compensating for shaft deflection and installation misalignment. They can simultaneously withstand radial and bidirectional axial loads, exhibiting high load-bearing capacity and strong impact resistance. Furthermore, their internal clearance and cage guidance method are optimized for vibration conditions, effectively reducing frictional temperature rise.
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