The influence of vibration and temperature on rod end joint bearing and installation points

- Nov 08, 2017-

Rod end joint bearing is a joint bearing with an end rod. Like the  spherical plain bearings, there are many designs of the rod end joint bearing combining with different sliding contact surfaces, to meet different needs and to adapt to certain applications.


The specific reference standards for rod end joint bearing s are GB/T304,1-2002、GB/T304,2-2002、GB/T304,3-21102 and GB/12765-199. Rod end joint bearing is a sliding bearing from the attribute. In the form of lubrication, there is mainly wear-resistant non-metallic material lubrication and oil lubrication. As to which to choose, is determined according to the actual situation and the use requirements.


The influence of vibration and temperature on rod end joint bearing

1. Vibration

Rod end joint bearing is very sensitive to vibration. Once vibration occurs, it will cause damage to the joint bearing, so it should be paid attention to at this point. However, it can be measured by a vibration measuring device, so as to know the size or amplitude of the vibration. However, it is necessary to pay attention to the installation position of the vibration measuring device, the measurement value needs to be analyzed and judged, and then the accurate position can be determined.


The temperature of the rod end joint bearing is measured, which is generally using the oil hole to measure the outer ring temperature of the joint bearing, because the result is more accurate. And, it has related  factors,including the heat capacity, heat dissipating capacity,rotation rate and load. And there may be other relevant factors. If the bearing temperature is abnormal, stop use immediately and solve it in time, so as not to affect the normal operation of the bearing.



1.In general, the installation of the rod end joint bearing needs to use the press machine. However,if the equipment cannot be used, then it can be carried out by installing and a small hammer. Moreover, on the casing pipe, the peened end should be spherical, so that it can have a better installation effect.

2.Because of the force applied when the joint bearing of the rod end is installed has a great relationship with the bearing size and the interference fit, if it is a large and medium-sized bearing, it is more appropriate to use thermal installation. The heating temperature is 80 ℃ -100 ℃, but not more than 100 ℃.

Wuxi Jinwei Precision Machinery Co., Ltd

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