| 1 | Dyeing and finishing machinery; housed units, cast iron housing, ball bearing. | |
| 2 | What's the object of using ball bearings? | |
| 3 | A ball bearing had bounced off the submarine's hull. | |
| 4 | Slewing bearings can be designed as ball bearings or roller bearings. | |
| 5 | The three basic types of antifriction bearings are ball bearings, roller bearings, needle bearings. |