23240 CC/C4W33VA991 bearings ( 200 mm x 360 mm x 128 mm) have the advantages of Self-aligning, extremely high load-bearing capacity, thinnest cross-section, low friction, suitable for confined spaces, and are therefore widely used in the Large crushers, mills, and rotary kilns.

| Part Number | 23240 CC/C4W33VA991 |
| Bearing Type | Spherical roller bearings, double row |
| Internal design | CC = Flangeless inner ring, guide ring centred on the inner ring, two stamped steel cages |
| Reference From | SKF 23240 CC/C4W33VA991 |
| Cage | CC = stamped steel cages |
| Seal | Open |
| Internal clearance | C4 |
| Weight [lb] | 124.560 |
| Permissible angular misalignment | 2.5 degrees |
| Heat stabilization | 392 °F (200 °C) |
| Roller bearing type | Spherical |
| Lubrication | W33 = Annular groove and three lubrication holes in the outer ring |
| Bore Type | Z = cylindrical bore |
| Other variants | VA991 = Bearing for high-speed applications |
| Principal Dimensions | |
| Inside - d φ [inch] | 7.874 |
| Inside - d φ tolerance | -0.03 mm to 0 |
| Outside - D Φ [inch] | 14.173 |
| Outside - D Φ tolerance | -0.04 mm to 0 |
| Width - B [inch] | 5.039 |
| Width - B tolerance | -0.08 mm to 0 |
| d2 [inch] | 9.252 |
| D1 [inch] | 11.968 |
| b [inch] | 0.657 |
| K [inch] | 0.354 |
| r1,r2(min.) [inch] | 0.157 |
| Performance | |
| Dynamic Radial - Cr [lbf] | 437635 |
| Static Radial - C0r [lbf] | 606833 |
| Speed ratings (oil) - nG [rpm] | 2460 |
The 23240 CC/C4W33VA991 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.















