Introduction:
The carbon graphite bearing is widely used in the conditions that the oil lubricants are not permitted during the bearing's operation, such as in the transports in industrial sectors like submersible pump motors, driers in the paper-producing industry, bearing used in man-made textile machines, cigarette manufacturing devices, as well as food, textile and chemicals. For the oil lubricants may inevitably cause contamination. While, the carbon graphite bearing is able to operate for long without lubricants for its strong self-lubricant capability. And for the great advantage of making wear-resistant parts, the carbon graphite bearing is widely used in manufacturing bearing works.

The bearing's operating temperature should takes into account when you choose the graphite bearings. The medium's temperature surrounding the bearing and the friction heat resulting from the bearing's friction mainly determined the temperature.
In the meanwhile, carbon graphite bearing made of various materials allows different temperatures, so that the we should choose the proper material bearing according to the operating temperatures. The friction and the wear will be largely lowered if the bearing is immersed in liquids or the liquids spray on the bearing (wet operation). And the liquid can reduce the friction heat. This allows the significantly increased of the PV permitted by graphite bearing. The PV can be as much as 1000times higher in this conditions then that of dry running process.