Bearing rolling elements according to their kind, are divided into: (1) Ball Bearings - ball rolling elements; (2) roller bearings - rolling element is roller. Roller bearings under the roller type, is divided into: cylindrical roller bearings - rolling body is a cylindrical roller bearings, cylindrical roller ratio of length to diameter of less than or equal to 3; Needle roller bearings - rolling element is a needle in bearings, needle length to diameter ratio greater than 3 but less than or equal to the diameter of 5mm; Tapered roller bearings - rolling body is tapered roller bearings; aligning roller bearings - rolling body is spherical roller bearings. 1. The high temperature bearing operating temperature higher than 120 ℃ high temperature bearing bearings. High temperature bearings are mainly used in aviation jet engines, nuclear reaction heap roller bearings, X-rays tube-aligning roller bearings wholesale, semiconductor device manufacturing equipment and a variety of hot-dip plating equipment. 2. The low bearing operating temperature below -60 ℃ low temperature bearing bearings. Typical applications are all kinds of liquid gas pump, such as liquefied natural gas pumps Spherical Roller Bearings, liquid nitrogen (hydrogen and oxygen) pump, butane pump, pump liquid rocket missiles, spacecraft and so on. Commonly used low temperature bearing structure mostly single row deep groove ball bearings and cylindrical roller bearings. Spherical roller bearings Which is good, roller bearings, provided by the Dongguan City, Long-Long-Bearing Machinery Co., Ltd. Dongguan City, Long-Bearing Machinery Co., Ltd. (long-yu.net) strong, credible, in Dongguan, Guangdong thrust roller bearings and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Long Yu and you hand into the brilliant, for a better future!