| 摘要 |
A slewing ring of bridge type crane has two rings, one of which is fixed, coupled with the supporting part of the crane truck and movable one with a gear rim, and in both rings spherical rolling paths are made with spherical rolling bodies located between them. In the fixed ring an annular groove is additionally made from the side of larger radius Rof rolling path, in which a ring bearing element is installed having T-shaped cross section with a spherical surface facing the rolling bodies, which is fastened in the fixed ring by L-shaped segment plates. |
