The most popular used bearing fan is ball bearing fan and sleeve bearing fan, Here we will give you a brief introduction in this article

What is a double ball bearing fan?

Ball bearings are the best bearing system in the fan industry. Fans with double ball bearings have the longest life and are reliable.

Ball bearings are renowned for their long life and reliability. Their life span can exceed 70,000 hours at 40 degrees Celsius.

MegaTechnology only uses NMB brand bearings for its fans, which is the best in our industry from a well-known bearing brand in Japan, to guarantee you quality and longevity. And only high quality fans use double ball bearings to reduce friction.

What is an sleeve bearing fan?

A sleeve bearing, as the name suggests, is shaped as a sleeve on a shaft. There is a small gap between the two and the lubricant fills this space.

Ball bearing Fan and Sleeve bearing Fan Comparison

We will introduct difference from following four factors.

Requirements for installation

You can install double ball bearing fans in any direction without affecting their life. This is in contrast to sleeve bearing fans, which are severely affected when mounted horizontally.

Noise levels

Sleeve bearing fans will be quieter at lower speeds than ball bearing fan at the same speed,but after using it for a while you will find that the noise level of a ball bearing fan is more stable, the sleeve bearing will change with time numbering, depending of course on the environment you are using it in.

Service life

Most ball bearing fans operate for approximately 50,000 hours or more, but a conventional sleeve fan can only operate for more than 30,000 hours. Besides, there are a variety of factors that determine the overall life of a fan such as ambient temperature, fan mounting position,

Conclusion

Higher grade fans normally use two ball bearing as they’re significantly more durable and can withstand higher temperatures. They cost significantly more than the sleeve bearing fans, but longer working life would justify the cost for power users.

In some cases of one time disposal products, or budget limited project, you may choose to use a fan with sleeve bearing.

Criteria Ball Bearing Sleeve Bearing

Fan Life Longer Life Shorter Life

Noise Quieter At High Speed Quieter At Low Speed

Fan Mounting Any Horizontal Only

Cost More expensive Less expensive

For more information contact our technical team on inquiry@cnmegatech.com

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Questions?

Email us at inquiry@cnmegatech.com or speak to one of our experts for further information on the ideal solution for your application 008613570567086

Mega

Guangzhou Mega Technology Co., Ltd. is a leading manufacturer and exporter specializing in high-performance thermal management solutions. With over 20 years of industry experience, the company serves global clients across sectors such as EV charging stations, inverter systems, industrial automation, and smart appliances. Mega Tech offers a comprehensive range of cooling products, including DC axial fans, waterproof blowers, and customized cooling modules tailored to demanding applications. Committed to innovation, quality, and responsive support, Mega Tech empowers engineers and system integrators to solve complex thermal challenges with efficiency and reliability.

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