Advantages and disadvantages of plain bearings relative to rolling bearings
Journal bearings are compared with rolling bearingsAdvantages of plain bearings:1, large friction coefficient, power consumption.2, not suitable for mass production, interchangeability is not good, not easy to install, disassemble and repair.3, the internal gap is large, processing accuracy is not high.4 、 low transmission efficiency, large heat consumption, inconvenient lubrication and maintenance, consumption of lubricant.5, the load, speed and work temperature range is narrow, a small change in the working conditions, the performance of bearings greater impact.6, can not bear radial and axial load simultaneously.
I don't know much about sliding bearings, but according to my understanding of a little volume is divided into several aspects: sliding bearing roller bearing, can be very thin, thinner than the needle bearing speed, noise, life and other properties: sliding bearing ratio of rolling bearing, sliding friction to rolling friction than for small, energy relatively small losses. Therefore, whether in noise or at the highest speed, the rolling bearing is superior, and the friction is relatively small, and the life is relatively long.
Advantages of plain bearings:1, and rolling bearings of the same volume of load capacity is much greater.2, vibration and noise is small, used in high precision requirements, but also does not allow vibration occasions.3, the metal foreign body caused little impact, it is not easy to produce early damage.Well, summed up the shortcomings of many advantages less, but in different use occasions, sliding bearing performance is very prominent! QQ 1054839354 is willing to share the bearing knowledge for you!
