| 摘要 |
Each trunnion of a spider is provided with an axial lubricating conduit having an outer portion forming a reservoir of increased diameter. Each conduit contains a combined device having an upstream part forming a constricted passage with the narrow portion of the conduit and an intermediate part in the form of a skirt and forming a stop valve. In order to ensure the positioning of this device, the skirt cooperates with a shoulder of the conduit, and a third part of the device cooperates with the end of an associated bearing bush. In this way, formation of air bubbles in the course of the filling of the conduits is avoided and the lubricant is retained in the reservoir during the course of operation.
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