Rely on the bearing inner ring shoulder and interference to achieve axial fixation. It applies to both ends of the fixed support structure. Needle roller bearing inner ring by the shaft shoulder and lock nut to achieve axial fixation. Friction surface temperatures on the rise, needle roller bearings NK7 / 10TN, the impact is much greater than bearing sliding velocity V P of the effects of stress. RNA22 ... 2RS, needle roller bearings, NA22 ... 2RS-bearing rollers that roller diameter and roller STO same series. They only slightly wider, double sealed structure so that it does not require maintenance, temperature range of -20 ℃ -120 ℃. Installation should RNA22 without inner ring ... 2RS series roller bearing in careful not to damage seals. The outer end face of the guide needs. Needle roller bearings NK8 / 12TN, governance and needle (online consultation), 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.