Your location:  Home  >  Bearing News  >  World Bearing News
<<  Back

When bearing relubrication is not a DIY job

Resource from:  https://www.designworldonline.com Likes:71
Sep 06,2022

3.png

If you are changing the bearings on a skateboard, you can do it in your garage with a pair of tweezers. For many applications though, the process of relubrication requires precision, expertise, and sophisticated technology. Here, Chris Johnson, director of bearing relubrication specialist SMB Bearings, examines some of the specialist equipment you might find in a bearing relubrication facility.


As a specialist bearing supplier, we used to receive requests for bearings with non-standard lubricants, or for relubrication. Over the years, our expertise in this area and our collection of specialist equipment has grown. If you want to know more about bearing relubrication, here are five key elements, plus one that is so secret I can’t really tell you too much about it!


Cleanroom environments
For precision applications, process of relubrication must take place in a contamination-free environment. Particles far smaller than the naked eye can see could easily compromise a bearing if they enter and contaminate the lubricant.


A good relubrication facility requires filtered air. Although most applications don’t require a certified cleanroom, many customers should expect a facility that can offer a highly controlled environment, free from sources of contamination and akin to a cleanroom environment.


Ultrasensitive scales
In some applications, the quantity of grease is just as important as the type of grease. For example, while a standard fill might be 30%, for certain low torque applications this would be too stiff, and a ten percent fill would be more suitable. When dealing with miniature bearings and quantities on this scale, precision is key. A job like this requires specialized, ultrasensitive scales capable of providing the necessary level of precision.


Ultrasonic cleaning equipment
Degreasing bearings is just as important as adding in fresh lubricant. If degreasing is not done in the right way, traces of the old grease can remain and cause problems. In addition to special solvents and chemicals, relubrication specialists might use ultrasonic cleaning technology. Ultrasonic waves cause cavitation, releasing tiny bubbles that provide a gentle scrubbing effect on the surfaces.


Ultraviolet inspection
Standard greases can become combustible in high-oxygen environments. This highlights the importance of degreasing properly, with the right chemicals and equipment, to avoid potentially explosive consequences. Bearings used in oxygen systems should not have any hydrocarbon-based oil in the lubricant, due to the risk of spontaneous combustion. Making sure the bearing is properly cleaned out is therefore essential. Having cleaned a bearing, a specialist can use ultraviolet light to ensure no traces of potentially combustible material remains, as hydrocarbons will fluoresce under this light.


Dry lubricants
Relubrication specialists are often called for because of the need for a specialist lubricant. Often, a problem could be easily resolved with the correct lubrication. One interesting area here is dry lubricants. The inner surfaces of a bearing can be coated in dry coatings, such as molybdenum disulphide, which will help prevent micro-welding between steel surfaces in vacuum environments. If you need dry lubricants to be burnished or sputtered onto the balls or raceways of a bearing, this is something that requires specialist expertise, particularly in precision applications such as vacuum environments.


Top secret
Some relubrication facility equipment is so sophisticated that full details of its operation cannot be disclosed. For example, we have proprietary technology that allows us to relubricate bearings without removing the shields. Customers who need a specialist service like this can inspect the facility to see the equipment in action, but they must sign non-disclosure agreements to make sure the secrets stay with the experts.


From ultrasonic cleaning devices to secretive technology that can degrease a bearing without removing the shields, a modern relubrication facility has an impressive array of equipment. If you don’t have the expertise or access to the right equipment, stay clear of botched DIY jobs and rely on the experts.


(https://www.designworldonline.com)
【CBCC News Statement】
1.The news above mentioned with detailed source are from internet.We are trying our best to assure they are accurate ,timely and safe so as to let bearing users and sellers read more related info.However, it doesn't mean we agree with any point of view referred in above contents and we are not responsible for the authenticity. If you want to publish the news,please note the source and you will be legally responsible for the news published.
2.All news edited and translated by us are specially noted the source"CBCC".
3.For investors,please be cautious for all news.We don't bear any damage brought by late and inaccurate news.
4.If the news we published involves copyright of yours,just let us know.

BRIEF INTRODUCTION

Cnbearing is the No.1 bearing inquiry system and information service in China, dedicated to helping all bearing users and sellers throughout the world.

Cnbearing is supported by China National Bearing Industry Association, whose operation online is charged by China Bearing Unisun Tech. Co., Ltd.

China Bearing Unisun Tech. Co., Ltd owns all the rights. Since 2000, over 3,000 companies have been registered and enjoyed the company' s complete skillful service, which ranking many aspects in bearing industry at home and abroad with the most authority practical devices in China.