After the TIMKEN
bearing is installed, check the operation in order to check if the installation is correct. The small machine can be rotated by hand to confirm whether the rotation is smooth. The inspection items have poor operation due to foreign matter, scratches, and indentations. The installation is poor, the torque generated by the mounting is not stable, and the torque is too large due to too small clearance, installation error, and sealing friction. Wait. If there is no abnormality, the power running can be started. Large machinery cannot be rotated manually, so the power is cut off immediately after the start of the no-load, the machine is idling, and the presence or absence of vibration, noise, and contact of the rotating parts is checked. After confirming that there is no abnormality, the power is turned on. The power running starts from the no-load low speed and slowly increases to the rated operation of the specified conditions. The items to be checked during the test run are whether there is abnormal sound, change in the temperature of the plane bearing, leakage or discoloration of the lubricant, and the like. If an abnormality is found, stop the operation immediately, check the machine, and remove the bearing check if necessary.
The temperature can generally be estimated based on the external temperature of the bearing housing. However, it is more accurate to directly measure the temperature of the outer ring of the TIMKEN bearing by using the oil hole. The bearing temperature gradually rises from the start of the operation, and the temperature is usually stable after 1 to 2 hours. If the bearing is poorly installed, the temperature will rise sharply and an abnormally high temperature will occur. The reasons are such as excessive lubricant, too small bearing clearance, poor installation, excessive friction of the sealing device, and the like. In the case of high-speed rotation, the selection of the structure and lubrication method is also the cause.
1. Keep the bearings and their surroundings clean.
Even small dust that is invisible to the eyes can have a bad effect on TIMKEN bearings. So keep the area clean so that the dust does not intrude into the flat bearings.
2. Careful use of the bearing gives the TIMKEN bearing a strong impact during use, which can cause scratches and indentations, which are the cause of the accident. In severe cases, cracks and breaks occur, so care must be taken.
3, use the appropriate operating tools
Avoid using existing tools and use the right tools.
4, pay attention to the corrosion of the plane bearing
When operating the bearing, the sweat on the hand can cause rust. Be careful to use a clean hand, it is best to wear gloves as much as possible.
It is very important to understand that the use of TIMKEN bearings will have a multiplier effect.
When the mechanical parts near the
bearing have been lubricated with oil or need to be dissipated by lubricating oil, the bearings should be lubricated with oil. There may be heat dissipation requirements when the bearing is under heavy load or high speed, or when external heat is introduced.
Micro-lubrication methods, such as drip lubrication, oil mist lubrication or oil and gas lubrication, ensure that the oil loss and bearing friction are small.
When air is used as the carrier, the oil can be supplied directly and the gas flow helps to seal.
Where the flat bearing speed is extremely high and where suburban fruit is to be cooled well, a large amount of lubricant can be sprayed directly onto all contact surfaces.
