Rod end joint bearing application and temperature

Rod end joint bearing: It is a joint bearing with a rod end or attached to the rod end, which belongs to a class of joint bearings. The joint bearing is a spherical plain bearing, and the basic type is composed of inner and outer rings having a spherical sliding spherical contact surface.

  Joint bearings are widely used in engineering hydraulic cylinders, forging machine tools, engineering machinery, automation equipment, automotive shock absorbers, water conservancy machinery and other industries.

Since the outer surface of the inner ring is provided with a composite material, the bearing can be self-lubricated during operation. Generally used for low-speed oscillating motion, and low-speed rotation, it can also be tilted within a certain range of angles. When the support shaft and the shaft housing hole are different, they can still work normally.

  Joint bearings can withstand large loads. Depending on its type and construction, it can withstand radial loads, axial loads or combined loads in both radial and axial directions.
The temperature of the rod end joint bearing, 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 with 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.
The high temperature often indicates that the rod end joint bearing is in an abnormal condition. High temperatures are also detrimental to the lubricant of the rod end joint bearings. Sometimes the overheating of the rod end joint bearing can be attributed to the lubricant of the rod end joint bearing. Long-term continuous rotation of the rod end joint bearing at a temperature exceeding 125 °C will reduce the life of the rod end joint bearing. Causes of high temperature rod end joint bearings include: insufficient lubrication or excessive lubrication, lubricant. Contains impurities, excessive load, rod end joint bearing damage ring, insufficient clearance, and high friction caused by oil seal.
Therefore, it is necessary to continuously monitor the temperature of the rod end joint bearing, whether it is measuring the rod end joint bearing itself or other important parts. If the operating conditions are the same, any temperature change can indicate that a fault has occurred.
The periodic measurement of the temperature of the rod end joint bearing can be performed by means of a thermometer, such as a skf digital thermometer, which can accurately measure the temperature of the rod end joint bearing and display it in units of °C or Fahrenheit.
The importance of the rod end joint bearing means that when it is damaged, it will cause the equipment to stop. Therefore, it is better to install a temperature detector for such rod end joint bearings.
Under normal conditions, the rod end joint bearing will have a natural temperature rise after one has just lubricated or relubricated and lasts for one or two days.