NA4844 needle roller bearings _ governance (certified) _ smoke shop Linqing needle bearing is 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. Rise in temperature of the friction surface, the impact is much larger than the sliding speed V bearer impact pressure P. Heat velocity V bearings, needle roller bearings are mainly caused by the friction of the bearing, shows NA4840 needle bearings, the bearing life is mainly determined by the value of P × V's. Needle Roller Bearing Co., Ltd. is located in Linqing governance Linqing Pan Town Industrial Park West first, and tobacco shops bearing market together, close to the Pro Hall Road, traffic is very convenient. Professional production of needle roller bearings NA4844 needle roller bearings, and build all types of non-standard needle roller, cylindrical roller and other types of products. If the shaft can not be used as a raceway, that If the shaft hardened impossible or uneconomical to use when grinding, you can use this type of needle roller bearings with inner ring. No needle bearing inner ring with cage stiffness.