Needle roller bearings _ RNA4822 governance (certified) _ Needle Roller Bearings Linqing provided by municipal and needle roller bearings plant. Linqing municipal and needle roller bearings plant (www.zhgzzc.com) is specialized in "physical ring type needle roller bearings, bearing roller type needle roller bearings, needle roller bearings curve wheel class," the enterprise, the company adhering to the "integrity management , hard service "concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Mr.Song. Company bearings are widely used in steel mills, mine machinery, textile machinery, power tools, automobiles, motorcycles, household appliances, power tools, sewing machines, printing machines, rolling machines. Dozens of manufacturers supporting the country as a whole, sells more than 10 provinces and autonomous regions RNA4822 needle roller bearings, and exported to more than ten countries and regions. Effect on the friction surface temperature rise RNA4824 needle roller bearings, bearing sliding velocity V is much larger than the impact pressure P. Heat velocity V bearing, mainly caused by the friction of the bearing, shows NK140 / 20 needle roller bearings, bearing life is mainly determined by the value of P × V's. Needle roller bearings have the largest number of, by pressing the outer hold, low cost, large radial load carrying capacity, the standard cage drawn cup needle roller bearings contain a steel cage for the needle in the orientation and maintain, characterized by fast, film keeping ability.