Double Direction Angular Contact Thrust Ball Bearing

PMK Double Direction Angular Contact Thrust Ball Bearings support axial loads in both directions while maintaining high stiffness and low friction. Their dual angular contact construction allows precise load distribution and accurate axial guidance under varying thrust conditions.
Key benefits
- Bidirectional axial load support with high rigidity.
- Low torque and smooth running at high speeds.
- Excellent axial guidance and positioning accuracy.
- High durability through optimized ball contact geometry.
- Compact design reduces overall bearing arrangement space.
Applications
- CNC spindle assemblies and precision gear mechanisms.
- High-speed machine tools and rotary tables.
- Turbines, pumps, and industrial drives.
- Aerospace and robotics requiring precision axial control.
Specifications

| Boundary Dimensions (mm) | Basic Load Ratings (kN) | Designations | Mass (kg) | Limiting Speeds (r/min) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| d | D | T | C | B | rmin | r1min | Ca | Coa | Grease | Oil | ||
| 140 | 190 | 60 | 30 | 15 | 1.5 | 1 | 91.5 | 365 | 234928 | 4.2 | 2000 | 2800 |
| 210 | 84 | 42 | 21 | 2.1 | 0.6 | 145 | 525 | 234428 | 8.75 | 1800 | 2600 | |
| 150 | 210 | 72 | 36 | 18 | 2 | 1 | 116 | 465 | 234930 | 6.6 | 1800 | 2400 |
| 225 | 90 | 45 | 22.5 | 2.1 | 0.6 | 172 | 620 | 234430 | 10.7 | 1700 | 2400 | |
| 160 | 220 | 72 | 36 | 18 | 2 | 1 | 118 | 490 | 234932 | 7 | 1700 | 2400 |
| 240 | 96 | 48 | 24 | 2.1 | 0.6 | 185 | 680 | 234432 | 13 | 1600 | 2200 | |
| 170 | 230 | 72 | 36 | 18 | 2 | 1 | 120 | 520 | 234934 | 7.35 | 1600 | 2200 |
| 260 | 108 | 54 | 27 | 2.1 | 0.6 | 218 | 810 | 234434 | 17.7 | 1500 | 2000 | |
| 180 | 250 | 84 | 42 | 21 | 2 | 1 | 158 | 655 | 234936 | 10.7 | 1500 | 2000 |
| 280 | 120 | 60 | 30 | 2.1 | 0.6 | 281 | 1020 | 234436 | 23.4 | 1400 | 1900 | |
| 190 | 260 | 84 | 42 | 21 | 2 | 1 | 161 | 695 | 234938 | 11 | 1400 | 2000 |
| 290 | 120 | 60 | 30 | 2.1 | 0.6 | 285 | 1060 | 234438 | 24.4 | 1300 | 1800 | |
| 200 | 280 | 96 | 48 | 24 | 2 | 1 | 204 | 855 | 234940 | 15.7 | 1300 | 1800 |
| 310 | 132 | 66 | 33 | 2.1 | 1 | 315 | 1180 | 234440 | 31.5 | 1200 | 1700 | |
| 220 | 300 | 96 | 48 | 24 | 2 | 1 | 210 | 930 | 234944 | 17 | 1200 | 1700 |
| 340 | 144 | 72 | 36 | 3 | 1 | 360 | 1390 | 234444 | 41 | 1100 | 1500 | |
| 240 | 320 | 96 | 48 | 24 | 2 | 1 | 213 | 980 | 234948 | 18.3 | 1100 | 1500 |
| 360 | 144 | 72 | 36 | 3 | 1 | 360 | 1450 | 234448 | 44 | 1000 | 1400 | |
| 260 | 360 | 120 | 60 | 30 | 2 | 1 | 315 | 1390 | 234952 | 30 | 1000 | 1400 |
| 400 | 164 | 82 | 41 | 3 | 1.5 | 440 | 1890 | 234452 | 64.5 | 900 | 1300 | |
| 280 | 380 | 120 | 60 | 30 | 2 | 1 | 320 | 1470 | 234956 | 33.5 | 900 | 1300 |
| 420 | 164 | 82 | 41 | 3 | 1.5 | 440 | 1960 | 234456 | 68 | 850 | 1200 | |
| 300 | 420 | 144 | 72 | 36 | 3 | 1 | 395 | 1810 | 234960 | 53 | 850 | 1200 |
| 320 | 440 | 144 | 72 | 36 | 3 | 1 | 405 | 1920 | 234964 | 55.5 | 800 | 1100 |
| 340 | 460 | 144 | 72 | 36 | 3 | 1.1 | 415 | 2020 | 234968 | 58.5 | 750 | 1000 |
| 360 | 480 | 144 | 72 | 36 | 3 | 1.1 | 420 | 2130 | 234972 | 61.5 | 710 | 950 |
| 380 | 520 | 164 | 82 | 41 | 4 | 1.5 | 485 | 2560 | 234976 | 87.5 | 630 | 900 |
| 400 | 540 | 164 | 82 | 41 | 4 | 1.5 | 495 | 2700 | 234980 | 91.5 | 600 | 850 |
* Boundary dimensions are compliant with standard series.
* Custom clearances and high-temperature variants are available upon request.
* Specifications subject to change. Contact us for the latest datasheet and custom configurations.
* Refer Disclaimer policy for more details.
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