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 | ||
| 51244M | 220 | 300 | 63 | 366 | 1148 | 700 | 950 | 12.2 |
| 51244 | 220 | 300 | 63 | 366 | 1148 | 700 | 950 | 12.9 |
| 51144 | 220 | 270 | 37 | 186 | 682 | 900 | 1300 | 4.45 |
| 51340M | 200 | 340 | 110 | 660 | 1865 | 480 | 630 | 30.8 |
| 51240 | 200 | 280 | 62 | 352 | 1029 | 750 | 1000 | 10.9 |
| 51240M | 200 | 280 | 62 | 352 | 1029 | 750 | 1000 | 11.5 |
| 51140M | 200 | 250 | 37 | 183 | 636 | 950 | 1400 | 3.6 |
| 517/190.5 | 190.5 | 266.7 | 57.1 | 270 | 815 | 710 | 1030 | 14.3 |
| 51338M | 190 | 320 | 105 | 607 | 1662 | 700 | 800 | 33.5 |
| 51238 | 190 | 270 | 62 | 357 | 1019 | 750 | 1000 | 11 |
| 51238M | 190 | 270 | 62 | 357 | 1019 | 750 | 1000 | 11.7 |
| 51138 | 190 | 240 | 37 | 178 | 592 | 950 | 1400 | 3.62 |
| 51138M | 190 | 240 | 37 | 178 | 592 | 950 | 1400 | 4.02 |
| 51336 | 180 | 300 | 95 | 515 | 1436 | 560 | 750 | 26.7 |
| 51236 | 180 | 250 | 56 | 295 | 825 | 800 | 1100 | 8.02 |
| 51236M | 180 | 250 | 56 | 295 | 825 | 800 | 1100 | 8.15 |
| 51136 | 180 | 225 | 34 | 151 | 500 | 1000 | 1500 | 2.86 |
| 51136M | 180 | 225 | 34 | 151 | 500 | 1000 | 1500 | 3.08 |
| 51334M | 170 | 280 | 87 | 472 | 1268 | 600 | 800 | 19.9 |
| 51234 | 170 | 240 | 55 | 281 | 744 | 800 | 1100 | 7.33 |