针过耐心的戒指NKIS25

Needle roller bearing with inner ring The needle roller bearing without inner ring is suitable for the parts of which the radial size is limited. Because of no inner ring, the surface of shaft journal fitted with it is acted directly as rolling surface. It is requested that the surface hardness be no less than HRC60, surface roughness, no more than 0.63μm. This kind of bearing does not limit the axial shift of shaft and housing and has high limiting rotational speed. The inner ring has no shoulder in this bearing. For this purpose, the inner ring, outer ring, complete set of needles and cage can be mounted respectively. This bearing does not limit the axial shift of shaft and outer housing. Since the cage separates the needles so as to reduce friction. It can be used for the parts with high rotational speed. Major Products and Services:design and develop all kinds of bearings in accordance with the requirements of customers. Metric type: NKI SERIES: NKI9/12 NKI60/25 NKIS SERIES: NKIS8 NKIS60 NA49 SERIES: NA4900 NA4928 NA69 SERIES: NA6900 NA6919 Inch type: BRI SERIES BRI 61812 BRI 82012 BRI 82016 BRI 102212 BRI 102216 BRI 122412 BRI 122416 BRI 142616 BRI 142620 BRI 162816 BRI 162820 BRI 183020 BRI 203316 BRI 203320 BRI223516 BRI 223520 BRI 243716 BRI 243720 BRI 243820 BRI 243920 BRI 264116 BRI 264120