Rolling friction coefficient than the slide bearing small NUTR1747 needle roller bearings, high transmission efficiency. Usually the friction coefficient for sliding bearings 0.08-0.12, and the friction coefficient of the rolling bearing is only 0.001-0.005; 2. Rolling has achieved standardization, serialization, universal NUTR1542 needle roller bearings, suitable for mass production and supply, use and maintenance is very convenient; 3. Rolling bearing steel 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 plain bearings drawn cup needle roller bearings are divided into (HF, HFL, RCB, RC NUTR15 needle roller bearings, FCB, FC) where the dimensions comply with the current standards, as a standard model; dimensions do not meet these criteria were classified as special models NATV50PP needle roller bearings | needle roller bearings | needle governance. Linqing provided by municipal and needle roller bearings plant. Linqing municipal and needle roller bearings plant (www.zhgzzc.com) strong, credible, in other industries, Liaocheng accumulated a large number of loyal customers. The company better work attitude and constantly improve governance and innovative ideas will lead you hand needle and into the brilliant, for a better future!