NUKR curve curve roller wheel of this series is a double row full complement roller structure. Like cylindrical roller bearings have the same outer axially guided by rolling bodies pressed into the outer wall of the casing and the effect of high-level composition gap seal. This curve wheel can withstand extremely high loads, as well as due to the axial guide rollers can withstand the impact of axial load. DF needle varieties offered, specifications IR303513 needle roller bearings, bearing steel material by hardness HRC60 ~ 64 IR283220 needle roller bearings, the surface roughness Ra of not more than 0.2 Cylindrical Roller size range: Dw: 3 ~ 30, Lw : 5-50; material from GCr15 steel (bearing steel) made IR293213 needle roller bearings, its hardness is HRC60 ~ 64; surface roughness Ra of not more than 0.2 I have a lot of production piston pin, crank pin and other pins, usually with Gcr15 steel (bearing steel) fabrication, precision, surface hardness and roughness are in line with the relevant industry standards, or to meet user requirements main structure: bearing code structural features Dw X Lw round needle PDw X Lw blunt needle roller IR283230 Needle bearings | needle roller bearings | needle provided by LINQing municipal governance and needle roller bearings plant. Linqing municipal and needle roller bearings plant (www.zhgzzc.com) (http://www.zhgzzc.com) strong, credible, in other industries, Liaocheng accumulated a large number of loyal customers. The company better work attitude and constantly improve governance and innovative ideas will lead you hand needle and into the brilliant, for a better future! You can also access (http://www.zhgzzc.com/supply_details_27157162.html), for more information about the company.