Heat speed V bearings, needle roller bearings NKIS25, mainly by the friction caused by the bearing, needle roller bearings, we can see, needle roller bearings NA4905, bearing life is mainly determined by the value of P × V's. In order to avoid changing the structure of the material and dimensional changes are not allowed in the work, bearing materials must be special heat treatment. NATR and NATR ... PP-type roller bearing NATR series roller bearing includes an outer ring, the inner ring, needle roller cage assemblies and pressed into and fixed at both sides of the inner ring of rings. NATR ... PP series has an additional seal ring. This wheel bearing grease has a large storage space for long-term use without greasing. Needle roller bearings NKI25 / 30 | governance and needle (Online) | needle roller bearings supplied by Linqing municipal and needle roller bearings plant. Linqing municipal and needle roller bearings plant (www.zhgzzc.com) (www.zhgzzc.net) Shandong Liaocheng, other leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum meet customer needs. Needle in governance and leadership with the staff warmly welcome all inquiries negotiations to create a better future governance and needle.