Physical ring bearing RNA22 ... 2RS double sealed RSTO35X needle bearings, roller bearing without inner ring. Rolling friction coefficient than the slide bearings, high transmission efficiency. General Bearing friction coefficient of 0.08-0.12 STO35X needle roller bearings, and Rolling friction coefficient of only 0.001 to 0.005; 2. Rolling has achieved standardization, serialization, universal STO35 needle roller bearings, suitable for mass production and supply of needle roller bearings, use and maintenance is very convenient; 3. Rolling bearing steel manufacturing, and after heat treatment, therefore, bearing not only has high mechanical properties and long life, and can be used to save STO30X manufacture plain bearings Needle roller bearings Needle roller bearings _ _ Needle by LINQing municipal governance and needle roller bearings plant available. 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!