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How to prolong the serive life of needle roller bearings

Needle roller bearing is a precision based products, safekeeping and reasonable installation will bring you use the satisfactory effect. And bearing due to pollution, corrosion, deformation and other factors, will affect the quality of bearing and damage to the original, can not achieve the desired results.

1) Save: bearing can not be exposed in the air, storage, stored in the room should keep clean, dry, inventory air relative humidity is not more than 55%, the temperature should be appropriate, fold the best actress temporarily without bearing should be oiled sequestration. Also avoid corrosive substances such as acid, alkali and chemical substances.

2)Transportation: needle roller bearings in the handling to avoid collision, drop deformation, damage.

3)Cleaning: except in the double-sided bearings, the rest of the bearing at the factory are added to the anti rust oil, before use to clean and is usually the bearing is dipped in a mixture of 8-10% mineral oil in gasoline, a grasp of the inner ring on the other hand, rotate the outer ring to wash away the bearing surface rust agent, clear clean the bearings can rotate, so that the evaporation of gasoline into lubricating oil or grease. Do not stick on the dust, moisture, sweat, so as not to affect the rotation accuracy and rust.

4)Check: after the end of the bearing installation, should be flexible, no stay phenomenon. In addition, the bearing factory has been checked size and rotation precision, can ensure the quality, the inner and outer rings of the bearing circle trace and bearing ring chamfer in black, are caused by the quality of the process and method of checking the assurance. Is normal, does not affect the quality of the product.

First, lubrication is the key. Select the appropriate lubrication system and high quality lubricant. Lubricating oil film will be carried out by the bearing and the oil film surface to contact each other, and provide the necessary protection against corrosion and wear, so all the rotating or reciprocating motion parts, especially for bearings and gears, such as the need for normal operation, lubrication oil film is indispensable. For splash lubrication or circulation lubrication system, oil film can transfer heat. Factories often due to improper lubrication and unnecessary downtime and equipment deterioration. Supply shortage will lead to increased wear and temperature rise, resulting in excessive wear and / or early bearing failure and damage. Excessive lubrication, especially the high-speed operation of the equipment, will be caused by oil agitation and excessive heat, so that lubricating oil, chemical degradation, will lead to bearing damage.

Correct lubrication, regular maintenance, can avoid the needle bearing lubrication problems caused by damage. Ensure proper lubrication should be done:

- follow the instructions for use by the equipment manufacturers for each device;

- grease should be filled into the bearing rolling part and the shell (or retainer) between, in order to ensure a sufficient amount of grease into the key roll surface get sufficient lubrication;

- should pay attention to when the bearing should be added fat;

- monitoring of the equipment's dashboard for early detection of signs of problems, such as temperature fluctuations and / or abnormal high temperatures;

- note that equipment noise or abnormal vibration;

- observation of oil leakage;

- check the oil regularly to see if it is contaminated.

Second, to improve the performance of roller bearing, reasonable adjustment is very important. The assembly or installation, such as excessive or too small clearance of the bearing, or in some cases, may cause early damage and bearing life shortening. In addition to the cost of downtime and expensive maintenance, bearing assembly and installation of the improper may also have more negative effects, such as the impact of other parts of the operation, shorten its service life, etc..

The best way to prevent the problems is to assemble, install and maintain the equipment according to the use of the equipment manufacturers. If time is very tight, the front push adjustment device or remove the spacer, in order to correct for the rolling bearing group of the tapered roller. On the other hand, adjust the bearing too tight, may lead to overheating damage, to replace the bearings. Assembly and installation of the process must be accurate, repeatable, and can be verified after the installation is complete. In addition, other parts parameters must be considered in order to optimize the system performance.

In addition, in accordance with the requirements of OEM to use the equipment, set the appropriate predictive maintenance projects such as the monitoring of lubricating oil or grease, which should include the root cause of failure analysis. This way, even if there is a problem with the device, its normal operation time can be greatly extended.

Correct lubrication and maintenance is very important, the correct installation and use is also indispensable, and then make full use of the existing state monitoring equipment escort. Failure to comply with the requirements of the installation and maintenance will cause the failure of the equipment, which constitutes the main safety hazard.

WOW bearings could supply full range of needle roller bearings and equipped components.

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WOW technology center: info@wow-bearings.com