What Effect Does the Grease Injection Amount of the Bearing have on the Use of the Bearing
What Effect Does the Grease Injection Amount of the Bearing have on the Use of the Bearing
2022年3月26日
How to Use NTN Bearing Correctly to Prevent Damage
How to Use NTN Bearing Correctly to Prevent Damage
2022年3月27日

Analysis on Maintenance and Repair Methods of SKF Rod end Joint Bearing

  • SKF Bearing temperature is too high due to: the quality of lubricating oil is unqualified or deteriorated, and the viscosity of lubricating oil is too high; The mechanism assembly is too tight (insufficient gap); The assembly of rod end joint bearing is too tight; The bearing race rotates on the shaft or in the shell; Excessive load; Broken bearing cage or body, etc.
  • The SKF Bearing is allowed to make slight running noise in the office. If the noise is too large or there is abnormal noise or impact sound, it indicates that the rod end joint bearing is faulty.Analysis on Maintenance and Repair Methods of SKF Rod end Joint Bearing

1. Maintenance, overhaul and abnormal handling of bearings

  • In order to maintain the original performance of the rod end joint bearing in good condition for as long as possible, it is necessary to maintain and repair in order to prevent accidents, ensure the reliability of operation and improve the productivity and economy. 
  • Maintain the operation standard of corresponding mechanical operation conditions and carry out it regularly. The contents include monitoring the operation status, replenishing or changing lubricants, and regular disassembly inspection.Analysis on Maintenance and Repair Methods of SKF Rod end Joint Bearing
  • As the maintenance items in operation, there are SKF Bearing rotation sound, vibration, temperature, lubricant state and so on.Analysis on Maintenance and Repair Methods of SKF Rod end Joint Bearing

2. Bearing damage and Countermeasures

  • Generally, if the rod end joint bearing is used correctly, it can be used until the fatigue life is reached. However, there will be accidental and premature damage, which is not resistant to use.
  •  This early damage, as opposed to fatigue life, limits the use of quality known as failure or accident. Most of them are caused by careless installation, use and lubrication, foreign matters invading from the outside, and insufficient research on the thermal effects of shafts and shells.Analysis on Maintenance and Repair Methods of SKF Rod end Joint Bearing
  • As automobile bearings are precision mechanical parts and made of hard wear-resistant materials, their manufacturing generally needs to be completed through turning, grinding and other processes, which is bound to use cutting fluid, grinding fluid and other substances that pollute the environment. 
  • With the development of cutting tools and cutting technology, there have been a lot of research on dry cutting and hard cutting of automobile bearings at home and abroad. However, as Koyo bearing is a component subject to alternating stress, how to effectively control the residual stress state of its machined surface has become the key to restrict the popularization and application of this technology.Analysis on Maintenance and Repair Methods of SKF Rod end Joint Bearing
Analysis on Maintenance and Repair Methods of SKF Rod end Joint Bearing

Analysis on Maintenance and Repair Methods of SKF Rod end Joint Bearing

  • Remove the outer ring of the interference fit, set several screws for the outer ring extrusion screw on the circumference of the shell in advance, and tighten the screw equally on one side. Remove it at the same time. These screw holes are usually covered with blind plugs, tapered roller bearings and other separate bearings. Several cuts are set on the housing shoulder.
  •  At this time, gaskets should be used, and then they should be removed with a press or gently patted slowly.Analysis on Maintenance and Repair Methods of SKF Rod end Joint Bearing
  • Second, disassembly of cylindrical bore bearing
  • When removing the inner ring, you can actually use a press to remove and pull it out, which is so simple. At this time, pay attention to make the inner ring bear its pulling force. The inner ring of large automobile bearing is disassembled by oil pressure method. Oil pressure is applied through the oil hole arranged on the shaft to make it easy to pull out. 
  • The Koyo bearing with large width is disassembled by the combination of oil pressure method and drawing fixture. The inner ring of Nu and NJ cylindrical roller bearings can be disassembled by induction heating method. It is a method of drawing after heating part in a short time to expand the inner ring.
  • disassembly of tapered bore bearing
  • When disassembling a small Koyo bearing with a set sleeve, it is necessary to fasten the support inner ring on the automobile bearing, then turn the nut back several times, and knock it down with a cushion block or hammer.
Analysis on Maintenance and Repair Methods of SKF Rod end Joint Bearing