| 摘要 |
A drive gear for a guide rail with a partition wall or similar device in a hanging bearing from the drive gear, whereby the drive gear has a carrying roller and two guiding rollers. The guiding rollers have a truncated vertical section and approach with their casing surface as close as possible to the carrying roller's casing surface while still maintaining a minor gap. The guiding rollers are supported in guiding roller receivers in a way that the gap between the guide rail, passing above the carrying roller and the guiding rollers, and the carrying roller and the guiding rollers respectively is approximately identical. |
