KR and KR ... PP curve roller in the KR, KR ... PP curve wheel, there is a cage-guided needle roller bearings NATRD40, while the outer ring is guided through the ring axial bolt. For heavy loads and the speed. Due to the internal bearings have more fat storage space, so the lubrication intervals have been extended. KR ... PP curve wheel in contact with the seal structure. Use of -30 ℃ -100 ℃. DF - IR inner ring (rings) processed by heat treatment and precision needle bearing, dimensional tolerances and geometrical precision in line with national standards, the inner raceway surfaces are generally oriented chamfer at both ends in order to install. It applies to the axis can not be heat treated, not directly as a raceway occasions. The inner ring and needle roller bearings without inner tie to reach normal operating clearance when used. NATR45 needle roller bearings | governance Needle (certified) | needle roller bearings provided by Linqing 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.