Spherical plain bearings and rod ends temperature requirements and disassembly methods

- Jul 03, 2019-

The temperature of the spherical plain bearings and rod ends, generally the temperature of the outer surface of the rod end joint bearing can be inferred. If the oil hole can directly measure the outer ring temperature of the rod end joint bearing, it is more suitable. Usually, the temperature of the rod end joint bearing starts to rise slowly as the rod end joint bearing starts, and reaches a steady state after 1-2 hours. The normal temperature of the rod end joint bearing varies depending on the heat capacity, heat dissipation, speed and load of the machine. If the lubrication and installation parts are suitable, the temperature of the rod end joint bearing will rise sharply, and abnormal high temperature will occur. At this time, it is necessary to stop the operation and take necessary precautions. The thermal sensor can be used to monitor the working temperature of the rod end joint bearing at any time, and automatically alarm or stop the occurrence of the burning shaft accident when the temperature exceeds the specified value.

 

Spherical plain bearings and rod ends mounting and dismounting

 

1. In the absence or inability to use the press, the end rod joint bearing can be installed with the assembly sleeve and the small hammer. The hammering force should be transmitted evenly to the entire circumference of the end face of the end rod joint bearing ring, so the hammered end face of the assembly casing should be made spherical.

 

2. The force required to install the end rod joint bearing is related to the size of the joint bearing and the amount of interference. For medium or large joint bearings with large interference, the method is hot. Before hot loading, put the end rod joint bearing or the separable joint bearing ring into the fuel tank or special heater and heat evenly to 80-100 °C, not more than 100 °C.

 

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