Usage of non-standard bearings for agricultural machinery
seo:http://en.xcwlbearing.com/news1075568.html date:2025/6/19 14:58:00
The usage method of non-standard agricultural machinery bearings covers multiple aspects such as preparation before installation, installation process, lubrication and maintenance, and operation and maintenance. The following is a detailed introduction:
Preparation before installation
Check the quality of bearings: carefully inspect the non-standard agricultural machinery bearings and their related components for damage or quality problems, ensuring that the inner and outer rings, rolling elements, and retainers of the bearings are intact.
Cleaning bearings and mating parts: Ensure that bearings and their mating parts (such as bearing seats, shafts, etc.) are clean and dust-free, without any rust, oil stains, or wear.
. Clean the reference surface with cleaning oil before installation to avoid impurities entering the bearing and affecting its operating accuracy.Choose the appropriate tool: According to the specific type and size of the bearing, choose the appropriate installation tool for installation, avoid using violent methods such as hammering to avoid damaging the bearing.
.Installation process
Control installation force: During installation, the installation force should be controlled to avoid excessive force causing bearing deformation or damage.
.Pay attention to the installation sequence: For situations where multiple bearings need to be used in combination, they should be installed according to the prescribed sequence and method to ensure the correct fit and operation of the bearings.
. Limit the position of the shaft: Generally, shafts adopt a double support structure, and the radial position of the shaft is jointly limited by two supports. Each support should have a non-standard bearing that plays a radial positioning role. The axial position can be limited by two supports each limiting axial displacement in one direction, or by one support limiting axial displacement in two directions. When bearing both radial and axial loads simultaneously, bearings are often installed in pairs for support, with three methods: back-to-back installation, face-to-face installation, and series installation.Consider the thermal elongation of the shaft: During machine operation, the temperature of the main shaft or transmission shaft is generally higher than that of adjacent parts, so the shaft will undergo thermal expansion and elongation.
. In order to maintain the flexibility of the shaft rotation, in the design of the supporting structure, while meeting the requirements of axial positioning accuracy, the requirement of the shaft's thermal free expansion and contraction should also be considered.Adjusting bearing clearance: Adjusting bearing clearance is to control the accuracy of shaft operation.
. Lubrication and MaintenanceChoose the appropriate lubricant: Select the appropriate lubricant (such as lubricating oil or grease) based on factors such as bearing operating speed, load, and working environment.
. For high-speed running bearings, lubricating oil is usually used; For low-speed and heavy-duty bearings, lubricating grease should be used.Reasonably control the amount of lubrication: The more lubrication, the better. Excessive lubricant may cause excessive pressure inside the bearing, which in turn increases friction and wear.
. Therefore, the lubrication amount should be reasonably controlled according to the bearing model and specific usage requirements.Regularly replace lubricants: Lubricants will gradually become ineffective and deteriorate during use, so they should be replaced regularly to maintain good lubrication of bearings.
. Operation and maintenanceKeep clean: Bearings are easily contaminated by dust, metal shavings, and other impurities during operation, so the working environment should be kept clean to prevent impurities from entering the interior of the bearing.
. Control temperature and humidity: Long term operation of bearings under high temperature conditions can easily cause material fatigue and lubricant failure, while environments with high humidity may lead to bearing rust or corrosion. Therefore, the temperature and humidity around the equipment should be controlled to maintain a suitable working environment.Regular inspection and maintenance: Regularly inspect and maintain non-standard agricultural machinery bearings, promptly identify and address potential issues such as looseness, wear, cracks, etc., to ensure the normal operation of bearings and extend their service life.
.