23028CJ Bore 140 Mm, Stamped Steel Cage, Spherical Roller Bearings
The 23028CJ 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 23028CJ bearing is a Spherical roller bearings, double row with an inner diameter of 140 mm , an outer diameter of 210 mm, a width of 53 mm. GCr15SiMn rings, GCr15SiMn rolling mlement. It uses Normal standard radial clearance, Open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
23028CJ bearings ( 140 mm x 210 mm x 53 mm) have the advantages of Small cross-section, high load-bearing capacity, self-aligning, and low friction, and are therefore widely used in the Gearbox, motor, space-constrained transmission components.
| Part Number | 23028CJ |
| Bearing Type | Spherical roller bearings, double row |
| Internal design | CJ = Flangeless inner ring, guide ring centred on the inner ring, two stamped steel cages |
| Reference From | SKF 23028CJ |
| Cage | J = Stamped steel cage, inner ring centred |
| Seal | Open |
| Internal clearance | Normal |
| Weight [lb] | 13.889 |
| Permissible angular misalignment | 2.5 degrees |
| Heat stabilization | 392 °F (200 °C) |
| Roller bearing type | Spherical |
| Bore Type | Z = cylindrical bore |
| Principal Dimensions | |
| Inside - d φ [inch] | 5.512 |
| Inside - d φ tolerance | -0.025 mm to 0 |
| Outside - D Φ [inch] | 8.268 |
| Outside - D Φ tolerance | -0.030 mm to 0 |
| Width - B [inch] | 2.087 |
| Width - B tolerance | -0.08 mm to 0 |
| d2 [inch] | 6.220 |
| D1 [inch] | 7.480 |
| b [inch] | 0.327 |
| K [inch] | 0.177 |
| r1,r2(min.) [inch] | 0.079 |
| Performance | |
| Dynamic Radial - Cr [lbf] | 108929 |
| Static Radial - C0r [lbf] | 15188 |
| Speed ratings (oil) - nG [rpm] | 3321 |
The 23028CJ 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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