Three Factors of NSK Bearing Failure
Three Factors of NSK Bearing Failure
2022年3月22日
How to Prolong Bearing life and / or Service Performance
How to Prolong Bearing life and / or Service Performance
2022年3月22日

The use of Grease Plays an Important Role in Timken Bearing Noise Maintenance

  • 1.The grease used in Timken bearing must have anti rust effect, and the anti rust agent can not be dissolved in water. The grease shall have good adhesion and can form an oil film on the steel surface. 

The grease will soften during machining, resulting in leakage. 

  • 2.During normal operation, the grease will be thrown from the bearing seat into the outer spherical ball bearing with seat.The use of Grease Plays an Important Role in Timken Bearing Noise Maintenance
  •  3.If the mechanical stability of the grease is not enough, the structure of the soap of the grease will be mechanically disintegrated during operation, resulting in the destruction of the grease and loss of lubrication. If the grease is selected incorrectly, all measures to prevent Timken bearing are futile.The use of Grease Plays an Important Role in Timken Bearing Noise Maintenance
  •  It is very important to select a grease whose base oil viscosity can provide sufficient lubrication effect at the working temperature, and the viscosity is mainly affected by the temperature, It decreases with the rise of temperature, and when the temperature decreases, it rises. Therefore, the base oil viscosity at operating temperature must be known. Machinery manufacturers usually specify the use of a certain grease, but most standard greases have a wide range of applications.The use of Grease Plays an Important Role in Timken Bearing Noise Maintenance
  • In the process of using outer spherical ball bearing with seat, grease is very important. If deteriorated grease is used, it will not only fail to play its due role, but also damage Timken bearings.The use of Grease Plays an Important Role in Timken Bearing Noise Maintenance
  • Timken bearing vibration has a significant effect on bearing failure For example: peeling, indentation, corrosion, crack Wear, etc. will be reflected in the bearing vibration detection, so the vibration can be measured by using special bearing vibration measurement devices (frequency analyzer and vibration instrument, etc.), and the details of abnormal vibration can be inferred through the frequency distribution. 
  • The measured values are different due to the use premise of the bearing or the installation position of the sensor. Therefore, it is necessary to analyze and compare the measured values of each machine in advance and determine the judgment scale.The use of Grease Plays an Important Role in Timken Bearing Noise Maintenance
  • At present, the equipment using fine bearings is becoming more and more refined, which makes the grease used in bearings must have the following functions:The use of Grease Plays an Important Role in Timken Bearing Noise Maintenance
  • (1) With or without the same operating life as the bearing, try to delay the maintenance cycle, shorten the shutdown time and improve the labor productivity.The use of Grease Plays an Important Role in Timken Bearing Noise Maintenance
  • (2) Running DN > 5 × Under the high speed of 105, ensure that the temperature rise of the motor is low and the oil is not shed, so as to reduce the power consumption and protect the motor.
  • (3) Its pure content control is under the inevitable standard to greatly reduce the pollution of equipment noise to the situation.The use of Grease Plays an Important Role in Timken Bearing Noise Maintenance
  • (4) Under the premise of ultra-low temperature work, ensure the intelligence of bearing start-up and operation, and common problems of bearing. Ensure low output power.The use of Grease Plays an Important Role in Timken Bearing Noise Maintenance
  • The Timken bearing removed shall be cleaned in coarse cleaning and fine cleaning. They shall be placed in the container respectively, and the metal mesh pad shall be placed at the bottom first, so that the bearing will not directly contact the dirt of the container. 
  • During rough cleaning, if the bearing rotates with dirt, it will damage the rolling surface of the bearing, which should be paid attention to. In the coarse cleaning oil, use the brush to remove the smooth grease and adhesion. After it is roughly clean, turn to fine cleaning.The use of Grease Plays an Important Role in Timken Bearing Noise Maintenance
The use of Grease Plays an Important Role in Timken Bearing Noise Maintenance
  • The lubrication management of oil film SKF Bearing Oil is very important and can not be ignored. The detailed introduction is as follows: 
  • more than half of the main causes of mechanical failure or early wear are related to lubrication technology management. Do a good job in lubrication management, prevent scratch or sintering of friction moving parts such as SKF bearings and gears, prevent and reduce wear, reduce friction resistance, prevent equipment accidents and improve equipment production efficiency; Saving energy, improving the effective utilization rate of energy and increasing economic benefits are the main tasks of lubrication management.
  • 1. Lubrication management is a professional technical management. Full time lubrication technical management personnel should be set up to formulate lubrication management system and carry out lubrication technical knowledge training.
  • 2. On the premise of reasonable oil tank capacity, maintain a reasonable oil level in the oil tank and often add lubricating oil to the oil tank to keep the oil in the oil tank at a reasonable operating oil level, which is beneficial to oil degassing, precipitator impurity, water separation and reducing the oil temperature in the tank.
  • 3. The oil samples in transit + in-service shall be taken regularly and in a fixed position, and tested from the oil odor, chromaticity, viscosity change, water content, water separation performance, pollutant category and content, anti foaming performance, etc. When the water content in the oil entering the lubrication point exceeds 0.1%, the mechanical wear increases sharply; Lubrication conditions above 0.5% will be dangerous. Make inspection records.
  • 4. Analyze and compare each inspection record, predict the bad lubrication state, and formulate improvement or prevention measures. The oil level, oil quality, oil temperature and oil pressure of the system shall be controlled, and the alarm and interlocking shall be reliable to prevent the occurrence of lubrication accidents.
  • Now, the specific steps of replacing the oil seal in case of oil leakage at the SKF Bearing of the steel wheel are described as follows:
  • 1. Loosen the four fixing bolts of the vibration motor and remove the vibration motor (it is not necessary to remove the rubber hose on the motor);
  • 2. Loosen the seven fixing bolts on the motor base and remove the motor base;
  • 3. Loosen the eight fixing bolts on the support plate and the walking bearing seat and the bolts connecting the support plate and the front frame, and remove the support plate together with the shock absorber and support;
  • 4. Loosen the eight fixing bolts on the SKF Bearing baffle and remove the baffle;
  • 5. Find a backing plate with a diameter smaller than the inner ring of SKF Bearing and pad it on the shaft head of the outer bearing seat;
  • 6. Remove the left end cover, pad the reverse side on the backing plate, and look for seven m12s × 70 bolts for fastening the left end cover and walking bearing seat;
  • 7. Lock the seven bolts in the figure in diagonal order to pull out the traveling bearing seat and SKF Bearing together. After turning the traveling bearing seat over and leveling, the model can be changed to φ one hundred and eighty × two hundred and twenty × 18 frame oil seal.
  • During installation, pay attention to the disassembly sequence of each part and install it in reverse order. Apply more grease on the framework oil seal, drive bearing seat and outer bearing seat to avoid damaging the oil seal during press fitting and causing oil leakage again.
Technical requirements for Timken non-standard bearing