Rolling friction coefficient small KR80PP needle roller bearings, high transmission efficiency than the sliding bearings. General Bearing friction coefficient of 0.08-0.12 NUKRE72 needle roller bearings, and friction coefficient of rolling bearings is only 0.001-0.005; 2. Rolling has achieved standardization, serialization, universal, suitable for mass production and supply, use and maintenance is very convenient; 3. Rolling bearing steel KR80 needle roller bearings, and after heat treatment, therefore, bearing not only has high mechanical properties and long life, and can be used to save manufacturing thrust needle roller bearings and thrust needle roller cage assemblies AXK and cage assembly is the main component of thrust needle roller bearings. Needle radially aligned pouch by holding and guiding. The retainer having a specific cross-sectional shape, is formed of hardened steel. Small cage with industrial plastics. Needle roller bearings KR80 _ governance (certified) _ Needle Roller Bearings Linqing provided by municipal and needle roller bearings plant. Linqing municipal and needle roller bearings plant (www.zhgzzc.com) Shandong Liaocheng, other leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Needle in governance and leadership with the staff warmly welcome all inquiries negotiations to create a better future governance and needle.