24188K30 Double Row Spherical Roller Bearings, Symmetric 1 Central Rib
The 24188K30 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 24188K30 bearing is a Double row spherical roller bearings, symmetric 1 central rib with an inner diameter of 440 mm , an outer diameter of 720 mm, a width of 280 mm. GCr15, GCr15SiMn, SUJ2 rings, GCr15, SUJ2 rolling mlement. Its dynamic radial rated load is approximately 6399835 N, its static radial rated load is approximately 13199823 N. It uses CN standard radial clearance, OPEN type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
24188K30 bearings ( 440 mm x 720 mm x 280 mm) have the advantages of High load-bearing capacity, impact resistant, self-aligning, and easy to install, and are therefore widely used in the Wind turbine main shaft, large ship main shaft, giant construction machinery.
| Part Number | 24188K30 |
| Design Type | B = with fixed central rib |
| Bore Type | K30 = Tapered bore (taper 1:30) |
| RIC | CN |
| Row | 2 |
| Bearing Type | Double row spherical roller bearings, symmetric 1 central rib |
| Manufacturer Part Code | 24188BK30 |
| Equivalent | 24188BK30 , 24188K30 |
| Cage | JPB = Stamping steel cage |
| Measurement | Metric |
| Seal type | OPEN |
| Relubrication | Standard |
| d φ Inside [inch] | 17.323 |
| D Φ Outside [inch] | 28.346 |
| B Width [inch] | 11.024 |
| nB Reference speed (grease) [min–1] | 265 |
| nG Limiting speed (oil) [min–1] | 687 |
| Weight [kg] | 436 |
| r(min.) Chamfer [inch] | 0.236 |
| D1 [inch] | 24.110 |
| ds [inch] | 0.492 |
| ns [inch] | 0.925 |
| Cr Radial Dynamic [lbf] | 1438682 |
| C0r Radial static [lbf] | 2967320 |
| Cur Radial Fatigue [lbf] | 229275 |
| Temperature - T(min)[°C] | -30 |
| Temperature - T(max)[°C] | +200 |
| Mounting dimensions | |
| da(min.) [inch] | 18.346 |
| Da(max.) [inch] | 27.323 |
| ra(max.) [mm] | 436 |
| Calculation coefficient | |
| e | 0.38 |
| Y0 | 1.72 |
| Y1 | 1.76 |
| Y2 | 2.62 |
The 24188K30 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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