Bearing concept

Any shaft is supported to work. The supporting part of the shaft is called the journal, and the component supporting the journal is called the bearing. According to the friction characteristics between journal and bearing, the bearing is divided into sliding friction bearing and rolling friction bearing. Bearing is one of the most important parts in all machinery. The performance of the machine, the length of life and the economy of the machine often depend on the correct design and selection of the bearing. The main features of sliding bearing are reliable operation, stable noise, vibration absorption ability, so it can withstand large impact load and can be used in high speed operation. Rolling bearings can reduce friction resistance. Most of the commonly used rolling bearings have been standardized