Product precision dimensional tolerances and geometrical accuracy JB / T8877. Mutual difference of needle roller diameter is 2μm HK222930 needle roller bearings, precision grade is G2 (GB GB309). The diameter of the inscribed circle conforms to tolerance grade F6 without inner bearing assembly in the front. 0 Group predetermined value bearing radial clearance in line with GB / T4604's. Special precision grade is based on GB / T307.1. Needle Roller Bearing Co., Ltd. Linqing municipal and Mr.Song disclose to you, combined needle roller bearings designed for use with the shaft bearing raceway of the bearing stiffness has certain requirements; or with a standard inner ring IR were inlayed on Hardness shaft is not required, the structure will be more compact governance Needle Roller Bearings Co., Ltd. all staff to thank the support and love of all walks of life! We sincerely welcome domestic and foreign merchants work together to achieve win-win situation. Practice has proved that needle roller bearings, working at less than 90% of the speed limit state is good. Low grease lubricated bearings speed limit than oil lubricated bearings speed limit HK2220 needle roller bearings, bearing on the way oil can reach the speed limit affected. Must focus on grease-lubricated bearings, the speed limit is generally only a high quality of the bearing oil recirculation system 80% of the speed limit, but the mist lubrication system, the speed limit generally higher than the same basic lubrication system 50% higher. Needle Roller Bearing Co., Ltd. Linqing governance since 1990 practitioners bearing HK2230 needle roller bearings, industrious and pragmatic spirit to forge ahead and create a governance today's performance. Now the company has sophisticated production equipment, perfect detection means, strong technical force, "to the credibility of development, quality of survival" purposes won the trust of customers. Depending on different occasions, it can be used without an inner ring of the bearing or needle roller and cage assembly, when the surface of the journal bearing surface and shell holes to match the inner bearing directly as outer rolling surface, in order to ensure load capacity and operating performance and have the same bearing rings, shaft or housing bore raceway surface hardness, machining accuracy and surface quality should be similar roller bearing rings. HK2210 needle roller bearings, needle roller governance (certification), 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.