Traditionally, industrial motors usually use steel bearings, but steel bearings also have some shortcomings, such as being prone to corrosion, low precision, easy to heat, and not resistant to high temperatures. With the development of the times and the advancement of science and technology, more and more new bearings are Materials are being introduced into the industrial field, and the same is true for motors. The development and use of hybrid ceramic bearings has brought more possibilities to industrial motors.
When considering key factors such as cost and life, it is not difficult to see which one is superior, steel bearings or hybrid ceramic bearings. This article will compare the specifications and differences between these two ball bearings. I hope it can help you.
1. Rust resistance. Even with regular lubrication, steel ball bearings are at risk of rusting. Ceramic bearings, on the other hand, are completely corrosion-resistant. Therefore, ceramic bearings minimize the possibility of motor shutdown and bearing failure. Hybrid ceramic bearings are designed to withstand extreme operating conditions. without cracking or chipping.
2. Minimize friction. Ceramic balls are generally smoother, rounder, and lighter than steel balls. The overall friction level of motors with ceramic ball bearings is 40% lower than traditional motors, so they can be more efficient and run faster. In addition, ceramic ball surfaces Their superior smoothness requires less lubrication than steel bearings.
3. Resistance to current. Bearings used in motors controlled by variable frequency drives often need to have excellent current resistance characteristics, and motors equipped with ceramic bearings can prevent events such as arcing compared to steel bearings.
4. Service life. Ceramic ball bearings may last up to ten times longer than steel bearings in the same motor. Ceramic balls are less prone to expansion and vibration than steel bearings. In addition, the smooth surface of ceramic bearings prevents the problems that often occur in steel bearings. The seat ring is damaged.
5. Cost. Steel bearings are more preferable than ceramic bearings, but when the superior service life and performance of the latter are taken into consideration, ceramic bearings are the better choice.
2024-01-29
