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 | ||
| 51310 | 50 | 95 | 31 | 96.2 | 145 | 1800 | 2600 | 0.942 |
| 51210 | 50 | 78 | 22 | 54.6 | 94 | 2400 | 3400 | 0.374 |
| 51110M | 50 | 70 | 14 | 27.3 | 58 | 3200 | 4300 | 0.155 |
| 51110 | 50 | 70 | 14 | 27.3 | 58 | 3200 | 4300 | 0.155 |
| 51309 | 45 | 85 | 28 | 72.3 | 96 | 1900 | 2800 | 0.656 |
| 51209 | 45 | 73 | 20 | 37 | 81 | 2600 | 3600 | 0.332 |
| 51109M | 45 | 65 | 14 | 26.7 | 50 | 3400 | 4500 | 0.139 |
| 51109 | 45 | 65 | 14 | 26.7 | 50 | 3400 | 4500 | 0.139 |
| - | 42 | 60 | 13 | 27.3 | 51 | 3800 | 5000 | 0.115 |
| 51708 | 40 | 100 | 28 | 75.5 | 151 | 1700 | 2400 | 0.97 |
| 51308 | 40 | 78 | 26 | 68.5 | 95 | 2000 | 2400 | 0.521 |
| 51208M | 40 | 68 | 19 | 46.8 | 78 | 2800 | 3800 | 0.324 |
| 51208 | 40 | 68 | 19 | 46.8 | 78 | 2800 | 3800 | 0.273 |
| 51108M | 40 | 60 | 13 | 27.3 | 51 | 3800 | 5000 | 0.118 |
| 51108 | 40 | 60 | 13 | 27.3 | 51 | 3800 | 5000 | 0.118 |
| 517/36.6M | 36.6 | 53.8 | 12 | 15.2 | 28.7 | 2400 | 3400 | 0.089 |
| 51307/YA6 | 35 | 68 | 24 | 55.5 | 73.8 | 2400 | 3400 | 0.301 |
| 51307 | 35 | 68 | 24 | 55.5 | 73.8 | 2400 | 3400 | 0.361 |
| 51207 | 35 | 62 | 18 | 37.3 | 55.5 | 3000 | 4000 | 0.193 |
| 51107M | 35 | 52 | 12 | 20.8 | 36 | 4300 | 5600 | 0.0817 |