Rod end installation and removal
Where the press is lacking or cannot be used, an assembly sleeve and a small hammer can be used to install the end rod joint bearing. The hammering force should be evenly transmitted 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 into a spherical shape.
The force required to install the end rod joint bearing is related to the size of the joint bearing and the size of the matching interference. For medium or large joint bearings with large interference, the hot-fitting method is commonly used. Put the end rod joint bearing or the detachable joint bearing ring into the oil tank or special heater to evenly heat to 80-100°C before hot-assembly, not exceeding 100°C.
Hot-mounted spherical plain bearings require skilled operation skills. After the joint bearing is taken out of the heating oil tank or heater, immediately wipe off the oil and attachments on the joint bearing surface with a clean cloth (note that cotton yarn cannot be used), and then place it in front of the mating surface. The joint bearing is pushed to the position against the shaft shoulder. Always push tight during the cooling process, or use a small hammer to tap the joint bearing through the assembly sleeve to make it tight. When installing the end rod joint bearing, the joint bearing should be rotated slightly to avoid overturning or jamming during installation.
When the outer ring of the end rod joint bearing is in a tight fit with the shell hole, the shell can be heated and installed into the joint bearing. Especially the joint bearing made of light metal materials may damage the mating surface due to the pressing in of the outer ring during the tight fitting process. In this case, the end rod joint bearing should be heated first.