For only drawn cup needle roller bearings, since the outer walls were very thin, do not hand a hammer to install, use press pushed. Because the hand hammer needle bearing outer ring produce local deformation. Playing roller bearings F303832, uneven pressure needle roller bearings, needle roller bearings as easy to make the journal slowly move inward, auxiliary rollers or auxiliary sleeve then slowly withdraw the needle bearing F3216, fitted to work until So far location. Needle varieties DF provide full, specifications, material bearing steel manufacturing, hardness HRC60 ~ 64, the surface roughness Ra of not more than 0.2 Cylindrical Roller size range: Dw: 3 ~ 30, Lw: 5 ~ 50; material from the GCr15 steel (bearing steel) produced, its hardness is HRC60 ~ 64; a surface roughness Ra of not more than 0.2 mass production I piston pin, crank pin and the other pins, typically with Gcr15 steel (bearing steel) manufacturing, precision, surface hardness and roughness are in line with industry standards, or to meet user requirements main structure: bearing code structural features Dw X Lw round needle PDw X Lw blunt needle roller bearings F3216 | governance and needle (Online) | Roller Needle bearing Linqing provided by the 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.