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 | ||
| 51417 | 85 | 180 | 72 | 336 | 534 | 1200 | 1800 | 8.35 |
| 51417M | 85 | 180 | 72 | 336 | 534 | 850 | 1200 | 8.6 |
| 51317M | 85 | 150 | 49 | 223 | 475 | 850 | 1600 | 3.97 |
| 51317 | 85 | 150 | 49 | 223 | 475 | 850 | 1600 | 3.49 |
| 51217 | 85 | 125 | 31 | 111 | 237 | 1100 | 2200 | 1.21 |
| 51117 | 85 | 110 | 19 | 49.4 | 132 | 1600 | 3000 | 0.419 |
| 51416 | 80 | 170 | 68 | 317 | 485 | 850 | 1200 | 7.89 |
| 51316M | 80 | 140 | 44 | 173 | 395 | 1200 | 1700 | 2.92 |
| 51316 | 80 | 140 | 44 | 182 | 315 | 1200 | 1700 | 2.63 |
| 51216 | 80 | 115 | 28 | 87.1 | 193 | 1700 | 2400 | 0.92 |
| 51116 | 80 | 105 | 19 | 49.4 | 130 | 2000 | 3000 | 0.399 |
| 51415 | 75 | 160 | 65 | 251 | 438 | 1300 | 2000 | 6.61 |
| 51315 | 75 | 135 | 44 | 175 | 288 | 1900 | 1700 | 2.61 |
| 51215 | 75 | 110 | 27 | 64.2 | 173 | 1200 | 2400 | 0.83 |
| 51115M | 75 | 100 | 19 | 48.1 | 120 | 2200 | 3200 | 0.382 |
| 51115 | 75 | 100 | 19 | 48.1 | 120 | 2200 | 3200 | 0.382 |
| 51414M | 70 | 150 | 60 | 257 | 350 | 950 | 1400 | 5.06 |
| 51314M | 70 | 125 | 40 | 148 | 270 | 1400 | 1900 | 2.85 |
| 51314 | 70 | 125 | 40 | 148 | 270 | 1400 | 1900 | 2 |
| 51214M | 70 | 105 | 27 | 76.7 | 161 | 1800 | 2600 | 0.756 |
