Improper lubrication accounts for 36% of the causes of premature failure of INA bearings. General purpose greases do not meet the needs of a wide variety of special bearing applications, using only one or all common greases for all miniature bearing applications. The problems caused will far outweigh the benefits of the unified brand. Bearing application conditions are very diverse, the correct lubrication is required to match the grease and bearing application conditions.
Bearing grease is the basis for smooth, worry-free operation and maximum reliability, even under the most extreme operating conditions. Grease prevents contaminants from entering micro-bearings, cushioning shock loads and preventing corrosion. Choosing the right grease in practical applications is the basic condition for obtaining the maximum service life of the bearing.
The criteria for proper lubricant selection include the type and size of the INA bearing, temperature, speed, load, and expected service life and relubrication cycle.
The initial radial clearance of the bearing is gradually reduced during the push-in process, and the amount of push-in determines the degree of fit. Therefore, the initial radial clearance of the bearing must first be measured before installation. During the pushing of the bearing, the radial clearance is continuously measured until the required radial clearance reduction and the desired interference fit are achieved.
Since the temperature is affected by lubrication, speed, load, and environment, the values in the table only indicate the approximate temperature range. Lubrication of bearing lubrication has an important influence on the fatigue life of rolling bearings and friction, wear, temperature rise, vibration, etc. Without normal lubrication, the bearings cannot work. Analysis of the cause of bearing damage indicates that about 40% of INA bearing damage is associated with poor lubrication. Therefore, good lubrication of miniature bearings is an effective measure to reduce bearing friction and wear. In addition, the lubrication of the bearing also has various functions such as heat dissipation, rust prevention, sealing, and shock mitigation. The role of bearing lubrication can be briefly explained as follows:
1. Inspection of the bearing: Cleaning of the bearing: When disassembling the bearing for inspection, first record the appearance of the bearing, confirm the residual amount of the lubricant, and wash the bearing after sampling the lubricant for inspection. As a cleaning agent, gasoline and kerosene are commonly used. The cleaning of the removed bearings is divided into coarse cleaning and fine cleaning. They are placed in the container respectively, and the metal mesh bottom is placed first so that the micro bearings do not directly contact the container. In rough cleaning, if the INA bearing is rotated with dirt, it will damage the rolling surface of the bearing and should be noted. In the rough cleaning oil, use a brush to remove the grease and the adhesive. After it is almost clean, it is transferred to the fine wash.
2, bearing maintenance: in order to maintain the original performance of the bearing in a good state for as long as possible, maintenance, repair, in order to prevent accidents, to ensure the reliability of operation, improve productivity and economy. Maintenance is best carried out on a regular basis in accordance with the operating standards for the mechanical operating conditions. The content includes monitoring of operating conditions, replenishment or replacement of lubricants, and periodic disassembly inspections. The maintenance items in operation include the rotation sound of the bearing, vibration, temperature, and the state of the lubricant.
3. Inspection and judgment of the bearing: In order to judge whether the removed miniature bearing can be used, it should be inspected after the bearing is cleaned. Check the raceway surface, the rolling surface, the state of the mating surface, the wear of the cage, the increase of the INA bearing clearance, and the damage and abnormality that have a drop in dimensional accuracy. For non-separable miniature ball bearings, use one hand to support the inner ring horizontally and rotate the outer ring to check if it is smooth. Fine washing is to carefully clean the bearing while rotating it in the cleaning oil. In addition, the cleaning oil should always be kept clean.
Bearing grease is the basis for smooth, worry-free operation and maximum reliability, even under the most extreme operating conditions. Grease prevents contaminants from entering micro-bearings, cushioning shock loads and preventing corrosion. Choosing the right grease in practical applications is the basic condition for obtaining the maximum service life of the bearing.
The criteria for proper lubricant selection include the type and size of the INA bearing, temperature, speed, load, and expected service life and relubrication cycle.
The initial radial clearance of the bearing is gradually reduced during the push-in process, and the amount of push-in determines the degree of fit. Therefore, the initial radial clearance of the bearing must first be measured before installation. During the pushing of the bearing, the radial clearance is continuously measured until the required radial clearance reduction and the desired interference fit are achieved.
Since the temperature is affected by lubrication, speed, load, and environment, the values in the table only indicate the approximate temperature range. Lubrication of bearing lubrication has an important influence on the fatigue life of rolling bearings and friction, wear, temperature rise, vibration, etc. Without normal lubrication, the bearings cannot work. Analysis of the cause of bearing damage indicates that about 40% of INA bearing damage is associated with poor lubrication. Therefore, good lubrication of miniature bearings is an effective measure to reduce bearing friction and wear. In addition, the lubrication of the bearing also has various functions such as heat dissipation, rust prevention, sealing, and shock mitigation. The role of bearing lubrication can be briefly explained as follows:
1. Inspection of the bearing: Cleaning of the bearing: When disassembling the bearing for inspection, first record the appearance of the bearing, confirm the residual amount of the lubricant, and wash the bearing after sampling the lubricant for inspection. As a cleaning agent, gasoline and kerosene are commonly used. The cleaning of the removed bearings is divided into coarse cleaning and fine cleaning. They are placed in the container respectively, and the metal mesh bottom is placed first so that the micro bearings do not directly contact the container. In rough cleaning, if the INA bearing is rotated with dirt, it will damage the rolling surface of the bearing and should be noted. In the rough cleaning oil, use a brush to remove the grease and the adhesive. After it is almost clean, it is transferred to the fine wash.
2, bearing maintenance: in order to maintain the original performance of the bearing in a good state for as long as possible, maintenance, repair, in order to prevent accidents, to ensure the reliability of operation, improve productivity and economy. Maintenance is best carried out on a regular basis in accordance with the operating standards for the mechanical operating conditions. The content includes monitoring of operating conditions, replenishment or replacement of lubricants, and periodic disassembly inspections. The maintenance items in operation include the rotation sound of the bearing, vibration, temperature, and the state of the lubricant.
3. Inspection and judgment of the bearing: In order to judge whether the removed miniature bearing can be used, it should be inspected after the bearing is cleaned. Check the raceway surface, the rolling surface, the state of the mating surface, the wear of the cage, the increase of the INA bearing clearance, and the damage and abnormality that have a drop in dimensional accuracy. For non-separable miniature ball bearings, use one hand to support the inner ring horizontally and rotate the outer ring to check if it is smooth. Fine washing is to carefully clean the bearing while rotating it in the cleaning oil. In addition, the cleaning oil should always be kept clean.
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