The selection of specifications, dimensions and accuracy according to the service parts, service conditions and environmental conditions, and matching with appropriate railway bearings are the premise to ensure the service life and reliability of bearings.Correctly select the use and maintenance method of IKO railway bearing
Correctly select the use and maintenance method of IKO railway bearing
Application position: IKO bearing is suitable for bearing the combined radial and axial load dominated by radial load. It is usually used in pairs with two sets of bearings. It is mainly used in the transmission parts of automobile, such as front and rear hubs, driving bevel gears, differential, reducer and so on.Correctly select the use and maintenance method of IKO railway bearing
Allowable speed: under the condition of correct installation and good lubrication, the allowable speed is 0.3-0.5 times of the limit speed of railway bearing. Under normal conditions, it is appropriate to use 0.2 times of the limit speed.
Allowable inclination angle: tapered roller bearings generally do not allow the shaft to be inclined relative to the shell hole. If there is an inclination, the inclination shall not exceed 2 ‘.Correctly select the use and maintenance method of IKO railway bearing
Allowable temperature: under the condition of bearing normal load, high temperature resistance of lubricant and sufficient lubrication, the general bearing is allowed to work at the ambient temperature of – 30 ℃ – 150 ℃.Correctly select the use and maintenance method of IKO railway bearing
Selection of bearing grease
Improper lubrication accounts for 36% of the causes of premature failure of IKO bearings General grease can not meet the needs of various special bearing applications. Using only one or all kinds of general grease to meet all railway bearing applications will cause far more problems than the benefits of a unified brand. The application conditions of bearings are very diverse. Correct lubrication requires that the grease match the application conditions of bearings.
Bearing grease is the basis to ensure the smooth, worry free operation and high reliability of IKO bearings, even under extreme working conditions. Grease prevents contaminants from entering the bearings, cushions impact loads and protects against corrosion. In practical application, the selection of appropriate grease is the basic condition for obtaining long service life of bearings
The criteria for proper lubricant selection include the type and size of bearing, temperature, speed, load, expected service life and supplementary lubrication cycle.Correctly select the use and maintenance method of IKO railway bearing
The initial radial clearance of the bearing decreases gradually in the pushing process, and the pushing amount determines the matching degree. Therefore, the initial radial clearance of the bearing must be measured before installation. During the pushing process of the bearing, the radial clearance shall be continuously measured until the required radial clearance reduction and ideal interference fit are achieved.Correctly select the use and maintenance method of IKO railway bearing
1. First, put the bearing into gasoline for cleaning, wipe off the oil sludge and dust left on the railway bearing, and gently wipe and polish all rusty bearings with metallographic sandpaper until there is no roughness by hand.
2. Wipe the cleaned IKO bearing dry with dry rags, and then soak it in antirust oil. In this process, the bearing shall be completely contacted with the antirust oil and the bearing shall be rotated continuously, so that the oil film formed by the antirust oil can cover the surface of the bearing and achieve the purpose of antirust.Correctly select the use and maintenance method of IKO railway bearing
3. Next, apply lithium grease and butter evenly on the surface of the bearing, including inner and outer rings, wheels and cages. And the bearing is rotated while wiping, so that the butter can really enter the bearing and play a full role in lubrication.Correctly select the use and maintenance method of IKO railway bearing
4. The latter process is packaging. In order to save costs, we “turn waste into treasure”, cut the discarded cement packaging bags in the warehouse into appropriately sized packaging bags, wrap the bearings tightly, mark the specifications and models of the bearings, and then put them back on the shelf for storage.Correctly select the use and maintenance method of IKO railway bearing
5. Use a thermal sensor to monitor the working temperature of IKO bearing at any time. If the temperature of railway bearing exceeds 125 ℃ for a long time, the service life of bearing can be reduced.Correctly select the use and maintenance method of IKO railway bearing
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