The high temperature often indicates that the ntn bearing is in an abnormal condition. High temperatures are also harmful to the lubricant of the bearing. Sometimes bearing overheating can be attributed to the lubricant of the bearing. If the bearing is rotated for a long time at a temperature exceeding 125 °C, the life of the ball screw bearing will be reduced. Causes of high temperature bearings include: insufficient lubrication or excessive lubrication, lubricants. Contains impurities, excessive load, bearing damage, insufficient clearance, and high friction caused by oil seals.
Ball screw bearings have higher precision than general mechanical parts, so care should be taken when using them.
1. Keep the ntn bearing and its surroundings clean.
2. Careful and careful when using: If you use the carelessness to give the bearing a strong impact, the bearing will be injured, indented, broken and injured.
3. Use the right tools.
4. Pay attention to the rust prevention of the bearing. Avoid use in wet areas, and wear gloves in order not to get sweat on.
5. The user should be familiar with the bearing.
The advantage of lubricating oil lubrication is that it has low frictional resistance and can dissipate heat. It is mainly used for high speed of ball screw bearings and ntn bearings with high working temperature. The grade of the lubricating oil should be selected according to the requirements of the automobile manual, and the vehicle maintenance cycle should be replaced in time. After the old oil is released, the mechanism should be cleaned and then new oil should be added. The fuel should be added to the specified marking line or flush with the filling port. (Depending on the specific structure and requirements of the car), it is not allowed to add more.
The lubrication time interval has a simple premise: to keep the equipment operating properly under conditions where the ball screw bearings do not stop running due to drying and collapse. This is a fixed concept of prevention. However, we must maintain a balance between lubrication and hunger and a lot of over-lubrication.
Traditionally, lubrication plans are based on time. Equipment suppliers typically develop lubrication plans based on operating time. And equipment suppliers often add guidance on the amount of lubricant during their maintenance planning.
Short-term oil changes are very common, and often more grease is added. If the staff is required to change the lubricant every two to three weeks, add one ounce of grease each time. These suggestions started at the outset and they were built on factors that were not known in any practical sense.
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