
23168 CACK/W33
weight:204kg
Spherical roller bearing with tapered bore and relubrication features

Products Description
Dimensions
| d |
340 mm |
Bore diameter |
|---|---|---|
| tΔdmp | 0.0 – 0.057 mm | Deviation limits of mid-range bore diameter |
| tΔSL | 0.0 – 0.057 mm | Deviation limits of tapered slope |
| D |
580 mm |
Outside diameter |
| tΔDmp | -0.05 – 0.0 mm | Deviation limits of mid-range outside diameter |
| B |
190 mm |
Width |
| tΔBs | -0.4 – 0.0 mm | Deviation limits of ring width |
| d2 |
≈412 mm |
Shoulder diameter of inner ring |
| D1 |
≈498 mm |
Shoulder/recess diameter of outer ring |
| b |
22.3 mm |
Width of lubrication groove |
| K |
12 mm |
Diameter of lubrication hole |
| r1,2 |
min.5 mm |
Chamfer dimension |
|
Normal |
ISO tolerance class for dimensions |
Abutment dimensions
| Da |
max.560 mm |
Diameter of housing abutment |
|---|---|---|
| ra |
max.4 mm |
Radius of fillet |
Calculation data
| SKF performance class |
SKF Explorer |
|
| Basic dynamic load rating | C |
4 285 kN |
| Basic static load rating | C0 |
6 550 kN |
| Fatigue load limit | Pu |
455 kN |
| Reference speed |
800 r/min |
|
| Limiting speed |
1 000 r/min |
|
| Limiting value | e |
0.31 |
| Calculation factor | Y1 |
2.2 |
| Calculation factor | Y2 |
3.3 |
| Calculation factor | Y0 |
2.2 |
Tolerances of run-out
| Range of section height at inner ring of assembled bearing | tKia |
60 µm |
|---|---|---|
| Range of section height at outer ring of assembled bearing | tKea |
100 µm |
| ISO tolerance class for geometrical tolerances |
Normal |
Radial internal clearance
| Minimum initial clearance |
270 µm |
| Maximum initial clearance |
360 µm |
23168 CACK/W33 Spherical Roller Bearing: Robust Design for Heavy-Duty Applications
The 23168 CACK/W33 spherical roller bearing is engineered to handle extreme radial and axial loads in harsh operating environments. Its self-aligning capability compensates for shaft misalignment up to 3°, reducing stress on adjacent components. The symmetrical barrel-shaped rollers and two-piece machined brass cage (CACK designation) ensure optimal load distribution and cage durability. The W33 suffix indicates a lubrication groove and three oil holes in the outer ring, enabling efficient grease replenishment. Manufactured from vacuum-degassed steel and hardened for wear resistance, this bearing excels in high-temperature and high-vibration settings.
Key Advantages for Industrial Reliability
This bearing's standout feature is its ability to sustain heavy shock loads while maintaining smooth operation. The optimized roller-to-raceway contact minimizes friction, extending service life even under uneven loading. Its brass cage resists deformation at elevated temperatures, outperforming standard steel or polymer cages. The integrated W33 lubrication system reduces maintenance frequency by 30–40% compared to conventional designs, critical for hard-to-access machinery. With an ISO 15:2017 compliance rating, it ensures consistent performance in contaminated environments like mining or cement production.
Versatile Use Across Critical Industries
The 23168 CACK/W33 is a workhorse in sectors demanding rugged reliability. Primary applications include vibrating screens in mining operations, gearboxes for wind turbines, and roll necks in steel mill machinery. It's also deployed in pulp and paper processing equipment, crushers, and heavy-duty conveyor systems. In energy production, its resilience makes it ideal for hydroelectric turbine shafts and coal pulverizers. For industries facing alignment challenges due to structural flexing, such as marine propulsion systems, this bearing's self-aligning design prevents premature failure, ensuring uninterrupted productivity.
| NO. | d[mm] | D[mm] | B[mm] |
| 24168 ECAC/W33 | 340 | 580 | 243 |
| 23264 CCK/W33 | 320 | 580 | 208 |
| 23264 CC/W33 | 320 | 580 | 208 |
| 23264 CACK/W33 | 320 | 580 | 208 |
| 23264 CAC/W33 | 320 | 580 | 208 |
| 23168-2CS5K/VT143 | 340 | 580 | 190 |
| 23168-2CS5/VT143 | 340 | 580 | 190 |
| 23168 CCK/W33 | 340 | 580 | 190 |
| 23168 CC/W33 | 340 | 580 | 190 |
| 23168 CACK/W33 | 340 | 580 | 190 |
| 23168 CAC/W33 | 340 | 580 | 190 |
| 22356 CCK/W33 | 280 | 580 | 175 |
| 22356 CC/W33 | 280 | 580 | 175 |
| 22264 CCK/W33 | 320 | 580 | 150 |
| 22264 CC/W33 | 320 | 580 | 150 |
| 24076 CCK30/W33 | 380 | 560 | 180 |
| 24076 CC/W33 | 380 | 560 | 180 |
| 23984 CCK/W33 | 420 | 560 | 106 |
| 23984 CC/W33 | 420 | 560 | 106 |
| 23076-2CS5K/VT143 | 380 | 560 | 135 |
| 23076-2CS5/VT143 | 380 | 560 | 135 |
| 23076 CCK/W33 | 380 | 560 | 135 |
| 23076 CC/W33 | 380 | 560 | 135 |
| 23076 CACK/W33 | 380 | 560 | 135 |
| 23076 CAC/W33 | 380 | 560 | 135 |
| 24164-2CS5K30/C3HGEA8 | 320 | 540 | 218 |
| 24164 CCK30/W33 | 320 | 540 | 218 |
| 24164 CC/W33 | 320 | 540 | 218 |
| 24072 CCK30/W33 | 360 | 540 | 180 |
| 24072 CC/W33 | 360 | 540 | 180 |

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