IKO combined bearing incorporate multiple types of bearings within a single unit, providing a space-saving and cost-effective solution for applications that require complex functionality. These bearings combine angular contact ball bearings, cylindrical roller bearings, and needle roller bearings to deliver superior performance, high durability, and extended operating life.
IKO combined bearings are ideal for use in a variety of applications, including industrial robotics, machine tools, and other precision machinery. Their compact size and efficient design make them an essential component in many manufacturing environments, and they are available in a range of sizes and configurations to suit different needs. With their robust construction and reliable performance, IKO combined bearings are trusted by engineers and manufacturers worldwide.
Operation of IKO combined bearing
Generally speaking, the temperature of the combined bearing will rise after it starts to operate. After a period of time, it will be normal at a lower temperature (usually 10 ~ 40 degrees higher than the room temperature). The time to normal varies according to the size, form, rotation speed and lubrication method of IKO bearing, and the heat release conditions around the imported bearing. At this time, it takes about 20 minutes to several hours.Common maintenance methods for abnormal operation of IKO combined bearing
Common maintenance methods for abnormal operation of IKO combined bearing
When the bearing temperature does not reach normal and abnormal temperature rise occurs, the following reasons can be considered. In addition, shut down as soon as possible and take necessary countermeasures. Temperature is very important to maintain the proper service life of imported bearings and prevent the deterioration of lubricating oil. It is recommended to control it under non high temperature (generally below 100 ℃) as much as possible.
The main reason for abnormal temperature rise is too much or too little lubricating oil. The IKO bearing is poorly installed. The internal clearance of the combined bearing is too small or the load is too large. Excessive friction of sealing device. Lubricant does not match. Creep of mating surface.Common maintenance methods for abnormal operation of IKO combined bearing
Secondly, check the raceway surface of the bearing, the condition of the rolling surface and joint surface, as well as the wear condition of the confrontation frame for damage and abnormal conditions. In particular, check the running track of the raceway surface. To judge whether the bearing can be used again, we should think about the damage level of the combined bearing, mechanical function, priority, operation premise, search and inspection cycle, etc.Common maintenance methods for abnormal operation of IKO combined bearing
Strong metallic sound
Abnormal load: select appropriate assembly clearance and preload
Poor assembly: improve the machining accuracy of the shaft and improve the installation method
Insufficient lubricant: supplement or use appropriate lubricant
Regular tone
Corrosion, indentation and scar of channel caused by foreign matters: clean relevant parts and use clean grease
Channel peeling: fatigue wear, replace IKO bearing
Irregular abnormal sound
Foreign matter intrusion: clean relevant parts and use clean grease
Excessive clearance: pay attention to fit and select appropriate clearance
Steel ball scar: steel ball fatigue peeling or foreign matter jamming, replace the bearing
Abnormal temperature rise
Excessive lubricant: reduce lubricant
Insufficient or unsuitable lubricant: add lubricant or select appropriate lubricant
Creep of mating surface or excessive sealing device: the mating surface of outer diameter or inner diameter of combined bearing is corrected, and the sealing form is changed
The rotation vibration of the shaft is large
Spalling: fatigue spalling, replace IKO bearing
Poor assembly: improve the machining accuracy of the shaft and improve the installation method
Foreign matter intrusion: clean relevant parts and use clean grease
Large lubricant leakage and discoloration
Excessive lubricant: reduce lubricant
Foreign matter intrusion: clean relevant parts
In the operation of IKO bearing, there are many factors affecting its clearance, mainly including temperature change, centrifugal force and fit of linear bearing. In the working process, the working clearance changes due to the influence of centrifugal force, fit and temperature. Sometimes, the influence of the same three factors is not isolated from each other, but interrelated.
Therefore, only in this way can we correctly reflect the influence of the three on the working clearance of the bearing in actual work, so as to reasonably determine the bearing clearance and improve the working efficiency and operation accuracy of the bearing
As for the damage state of IKO bearing, such as the clamping damage of the ring and retaining edge of roller bearing, these reasons can be considered as insufficient lubricant, unsuitable, defects of oil supply and drainage structure, invasion of foreign matters, installation error of linear bearing and excessive deflection of shaft
The selection of specifications, dimensions and accuracy according to the service parts, service conditions and environmental conditions, and the matching of appropriate bearings are the premise to ensure the service life and feasibility of bearings.Common maintenance methods for abnormal operation of IKO combined bearing
Application position: tapered roller 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.Common maintenance methods for abnormal operation of IKO combined 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 linear bearing. Under normal conditions, it is appropriate to use 0.2 times of the limit speed.
Allowable tilt angle: IKO bearings generally do not allow the shaft to tilt relative to the shell hole. If there is any tilt, the greater is no more than 2 ‘.
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 ℃.
The running state of the machine that needs to be checked is the focus of attention in the bearing, and it is becoming more and more important to prepare a thorough inspection scheme. Because it is an important condition monitoring of all rotating machinery components to prevent bearing damage and to prevent early detection of IKO bearing damage during unplanned maintenance equipment shutdown, it is an important part at home.
But not all machines are equipped with this advanced equipment. In this case, the machine operator or maintenance engineer must insist on the bearing fault signal alarm.Common maintenance methods for abnormal operation of IKO combined bearing
Therefore, only investigating the bearing damage, it is difficult to know the real cause of the damage. However, if we know the use machinery and conditions of the bearing, the structure around the linear bearing, the situation before and after the accident, and combined with the damage state of IKO bearing and several causes, we can prevent the recurrence of similar accidents.Common maintenance methods for abnormal operation of IKO combined bear
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