It is designed to withstand thrust loads during high-speed operation and consists of a washer-like ferrule with a raceway groove for ball rolling. Since the ferrule is cushion-shaped, thrust ball bearings are divided into two types: flat base cushion type and aligning spherical seat cushion type. In addition, this kind of bearing can bear axial load, but cannot bear radial load.
Purpose of thrust ball bearings: They are only suitable for parts that bear axial load on one side and have low rotational speeds, such as crane hooks, vertical water pumps, vertical centrifuges, jacks, low-speed reducers, etc. The shaft ring, seat ring and rolling elements of the bearing are separated and can be assembled and disassembled separately.
| Model | Old model | Dimensions(mm) | Rated load(N) | Speed min-1 | Weight(kg) | ||||
|---|---|---|---|---|---|---|---|---|---|
| d | D | B | Cr | Cor | Grease lubrication | oil lubrication | (refer to) | ||
| 234930BM | - | 150 | 210 | 72 | — | — | — | — | 6.83 |
| 234738BM | - | 197 | 290 | 120 | — | — | — | — | 23.7 |
| 234430BM | - | 150 | 225 | 90 | — | — | — | — | 11.1 |
| 234932BM | - | 150 | 210 | 72 | — | — | — | — | 6.83 |
| 234440BM | - | 200 | 310 | 132 | — | — | — | — | 33.6 |
| 234730BM | - | 155 | 225 | 90 | — | — | — | — | 10.3 |
| 234934BM | - | 170 | 230 | 72 | — | — | — | — | 7.9 |
| 234740BM | - | 207 | 310 | 132 | — | — | — | — | 31.3 |
| 234432BM | - | 160 | 240 | 96 | — | — | — | — | 13.6 |
| 234936BM | - | 170 | 230 | 72 | — | — | — | — | 7.9 |
| 234908BM | - | 40 | 62 | 28 | — | — | — | — | 0.28 |
| 234732BM | - | 165 | 240 | 96 | — | — | — | — | 12.6 |
| 234938BM | - | 190 | 260 | 84 | — | — | — | — | 12.3 |
| 234920BM | - | 78 | 115 | 48 | — | — | — | — | 1.5 |
| 234434BM | - | 70 | 260 | 108 | — | — | — | — | 19.5 |
| 234940BM | - | 200 | 280 | 96 | — | — | — | — | 17 |
| 234921BM | - | 78 | 115 | 48 | — | — | — | — | 1.5 |
| 234734BM | - | 70 | 260 | 108 | — | — | — | — | 19.5 |
| 234922BM | - | 78 | 115 | 48 | — | — | — | — | 1.5 |
| 81220 | 9220 | 100 | 150 | 38 | 285 | 840 | - | 1900 | 2.2 |
