249/950 CA/W33 bearings ( 950 mm x 1250 mm x 300 mm) have the advantages of Self-aligning, high load-bearing capacity, and impact resistant, and are therefore widely used in the Mining machinery, metallurgical equipment, papermaking machinery, vibrating screens, wind turbines, and large industrial gearboxes.

| Part Number | 249/950 CA/W33 |
| Manufacturer Part Code | 249/950CA/W33 |
| Internal design | CA = Retaining flanges on the inner ring, guide ring centred on the inner ring, machined brass cage |
| Bearing Type | Spherical roller bearings, double row |
| m Weight [lb] | 2248.692 |
| Seal type | open |
| Series | 249..-CA/W33 |
| Cage | CA = brass cage |
| Lubrication | W33 = Annular groove and three lubrication holes in the outer ring |
| Bore Type | Z = cylindrical bore |
| Radial internal clearance | Normal |
| Units | Metric |
| Cr Dynamic Radial [lbf] | 2404442 |
| C0r Static Radial [lbf] | 5843655 |
| Pu Fatigue Radial [lbf] | 336026 |
| Operating temperature - T(min) [°C] | -30 |
| Operating temperature - T(max) [°C] | +200 |
| nB Speed ratings (grease) [rpm] | 171 |
| nG Speed ratings (oil) [rpm] | 336 |
| Heat stabilization | 392 °F (200 °C) |
| Dimension | |
| d φ Inside [inch] | 37.401 |
| D Φ Outside [inch] | 49.213 |
| B Width [inch] | 11.811 |
| b [inch] | 0.878 |
| K [inch] | 0.472 |
| d2 [inch] | 41.378 |
| D1 [inch] | 45.276 |
| ra(max.) Fillet [inch] | 0.236 |
| r1,r2(min.) Fillet [inch] | 0.295 |
| Abutment dimensions | |
| da(min.) [inch] | 38.504 |
| Da(max.) [inch] | 48.110 |
| Calculation factor | |
| e | 0.21 |
| Y1 | 3.2 |
| Y2 | 4.8 |
| Y0 | 3.2 |
The 249/950 CA/W33 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.















