What is a ring needle roller bearing, what kind?

Entity ferrule needle roller bearing is composed of one or two ring and retainer of needle group. According to different applications, can be used with inner ring or without inner ring of the bearing. Outer ring double guard ( Or double lock ring) With NA, NKI type cage needle bearing can install the inner ring and outer ring ( Lock ring, a full set of needle roller and cage) , high access speed, single row and double row two. Without inner ring with NA, NKI type bearing cage needle bearing without inner ring is the RNA, NK type needle roller bearings. This kind of bearing inner ring, applicable to the limited size of the radial installation supporting structure, and the suitable journal bearing directly as a rolling surface. As the raceway surface axis, must quenching hardware and grinding, and only the processing to the appropriate size and shape, precision needle roller bearing to higher life and operation of a complete set of precision. At the same time, because there is no inner ring, so that the diameter of the shaft can be appropriately increase, thus increasing the rigidity. With or without inner ring sealing needle bearing of single or double sealed needle bearing can effectively prevent the intrusion of dirt, the bearings have to fill in the right amount of lithium grease. This kind of bearing inner ring than the outer ring width, which makes the bearings on the shaft relative bearing box has also can ensure good seal when micro displacement and avoid bearing contaminated. Bearing inner ring has lubricating oil hole, can need according to the configuration, supplement by outer or inner ring lubrication. A: jiaxing - Axis even bearing industry lead the green trend next article: shaft which three of the bearing performance is an important index of water pump performance related tags: needle roller bearing, needle roller bearing collar, related news what are the causes of needle roller bearing damage what is drawn cup needle roller bearing water pump bearings manufacturer of needle roller bearing damage reason what how to disassemble the needle roller bearing needle roller bearing device related products