| English | eng-000 |
| idling gear | |
| 普通话 | cmn-000 | 惰轮 |
| 普通话 | cmn-000 | 空转轮 |
| 普通话 | cmn-000 | 空转齿轮 |
| English | eng-000 | free pulley |
| English | eng-000 | free-rolling wheel |
| English | eng-000 | gear idle |
| English | eng-000 | idle gear |
| English | eng-000 | idle pulley |
| English | eng-000 | idle wheel |
| English | eng-000 | idler |
| English | eng-000 | idler gear |
| English | eng-000 | intermediate wheel |