Thrust ball bearings are separate-type bearings that can only withstand axial loads and cannot withstand radial loads. They are available in two configurations: single-direction and double-direction; the single-direction type withstands axial forces in one direction, whilst the double-direction type can withstand axial forces in both directions. They have a relatively low maximum speed and lack self-aligning capability. They are commonly used in support positions subject to axial loads, such as machine tool spindles, pumps, valves and low-speed transmission mechanisms.
| Bearing model number | Basic Dimensions（mm） | Basic load （KN） |
Rated speed(rpm) | Bearing weight | ||||
|---|---|---|---|---|---|---|---|---|
| d inner diameter |
D outer diameter |
B thickness |
Thickness Cr |
Static load Cor |
Grease lubrication | oil lubrication | ||
| 51222M | 110 | 160 | 38 | 131 | 393 | 850 | 1700 | 2.67 |
| 51222 | 110 | 160 | 38 | 131 | 393 | 850 | 1700 | 2.43 |
| 51122M | 110 | 145 | 25 | 83 | 233 | 1200 | 2200 | 1.21 |
| 51122 | 110 | 145 | 25 | 83 | 233 | 1200 | 2200 | 1.12 |
| 517/100.2 | 100.2 | 150 | 38 | 125 | 347 | 1600 | 1800 | 2.2 |
| 51420M | 100 | 210 | 85 | 421 | 734 | 950 | 1300 | 13.5 |
| 51420 | 100 | 210 | 85 | 448 | 775 | 700 | 950 | 13.6 |
| 51820 | 100 | 172 | 57 | 275 | 513 | 1300 | 1400 | 5.36 |
| 51320M | 100 | 170 | 55 | 229 | 513 | 700 | 1400 | 4.92 |
| 51320 | 100 | 170 | 55 | 229 | 513 | 950 | 1400 | 4.85 |
| 51220M | 100 | 150 | 38 | 125 | 347 | 950 | 1800 | 2.33 |
| 51220 | 100 | 150 | 38 | 125 | 347 | 950 | 1800 | 2.12 |
| 51120M | 100 | 135 | 25 | 81 | 213 | 1300 | 2400 | 0.937 |
| 51120 | 100 | 135 | 25 | 81 | 213 | 1700 | 2400 | 0.937 |
| 51418M | 90 | 190 | 77 | 381 | 621 | 1100 | 1700 | 9.91 |
| 51318M | 90 | 155 | 50 | 232 | 517 | 800 | 1500 | 4.44 |
| 51318 | 90 | 155 | 50 | 232 | 517 | 800 | 1500 | 4.02 |
| 51218 | 90 | 135 | 35 | 132 | 285 | 1000 | 2000 | 1.67 |
| 51118M/P4 | 90 | 120 | 22 | 65 | 170 | 1500 | 2600 | 0.721 |
| 51118 | 90 | 120 | 22 | 65 | 170 | 1500 | 2600 | 0.632 |
