| 摘要 |
The invention relates to car building. A trolley bolster contains upper and lower belts with fabrication holes. Longitudinal and transverse ribs, vertical side walls and a center pivot unit are connected to the fabrication holes. The center plate is made with a minimum thickness of 40 mm of wear resistant material, has a cylindrical shank press-fitted in the hole made in the upper area of bolster, which is equipped with an annular collar. The technical result: increase of strength of the center plate. |
