First of all, the lubrication is the key. Selection of proper lubrication system and high quality lubricant. Oil film lubrication oil film bearing surface due to contact with each other apart, and provide the necessary protection of corrosion and wear, and so on all rotating or reciprocating parts, especially gear and bearing, for the normal mobile crane bearing operation of the lubrication oil film, indispensable. As for the splash lubrication or circulating lubrication system, oil film can transfer heat. Factory always due to improper lubrication and unnecessary stop and equipment state of deterioration. Oil supply shortage will lead to increased wear and temperature rise, resulting in excessive wear and / or bearing early failure and damage. Lubricating excessive, especially high-speed operation of the equipment, the oil stirring generate too much heat, so that oil and chemical degradation, can also cause bearing damage.
Correct lubrication, regular maintenance, can avoid the problems caused by the damage of bearing lubrication. Ensure proper lubrication should be:
• follow equipment manufacturers as the guide to the use of each machine set;
• add grease, shall be filled into the bearing part and the shell (or ring), to ensure the adequate grease into the raceway surface, the key is fully lubrication;
• should notice when bearing grease (Re-lubrication);
Indicating instrument, monitoring equipment, in order to find the signs of problems as early as possible, such as temperature fluctuations and / or abnormal high temperature;
• equipment noise or vibration;
• to observe the leakage of lubricating oil;
• regular on lubricant sampling, and see if the pollution.
Secondly, such as the need to improve the bearing performance, reasonable adjustment is very important. Assembly or installation, such as bearing internal clearance is too large or too small, or in some cases, preload is too high, may lead to the early damage and bearing life expectancy. In addition to causing downtime and costly repair, bearing assembly and improper installation may also have more negative effects, marine crane bearing such as the impact of other parts of the operation, shorten the service life etc..
According to the device manufacturer's manual, assembly, installation and maintenance, is the best way to prevent the problem. If time is tight, can push forward the adjustment device to correct or remove shim, loose tapered roller bearing group. On the other hand, bearing adjustment too tight, may lead to overheating damage, to replace the bearings. Process assembly mounting bearings must be accurate, repeatable, and after installation can be verified. You must also consider the parameters of other parts, in order to optimize the system performance.
In addition, in accordance with the requirements of OEM to use the equipment, set as the lubricating oil or grease repair project monitoring and forecasting of right, which should include the failure root cause analysis. So, even if there is a problem of the equipment, its normal running time can be greatly extended.
Correct lubrication and maintenance is the key, the correct installation and use is also indispensable, and make full use of the existing condition monitoring equipment. Do not follow the requirements of installation and maintenance will cause equipment failure, which is a hidden danger of.
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