Sunday, 27 May 2012

The Application of Needle Roller Bearing


As we see, with the quick development of the economy, there are more and more cars and other transportation vehicles on the streets. But have you ever wondered that how these machines run? It is no wonder that these machines are composed of many different kinds of mechanical parts, among which the bearings are very important. Of course, there are also numerous types of bearings. And needle roller bearing is one important kind.

Needle roller bearings can be applied in numerous places. They can be widely used in the machinery such as the agricultural machinery, industrial sewing machine, the construction tools and the material handling equipment. Additionally, they are also commonly applied in the transportation vehicles such as the cars, buses, electric bicycle and the aircrafts. The needle roller bearings are also very helpful in some other places which we are not very familiar with. For example, Hydraulic pumps, sheave blocks and hoist drum shaft.

Needle roller bearings are the roller bearings with cylindrical roller, compared with its diameter, its roller is both thin and long. The needle roller’s contour surface is fairly contracted near the proximal surface. The modified result of the contact between needle and roller line can stay clear of producing the destructive edge stress. Dependent upon different occasions, people can pick the needle roller bearing without inner ring or the needle roller without needle roller and cage assemblies, at this moment, the journal surface also, the shell holes’ surface which are matched with the bearing can directly used as the inner and outer raceway surface of bearing, so that you can ensure the load capacity and operational performance match with the bearing with the ring, the shaft or shell bore raceway surface’s hardness, machining accuracy and surface quality ought to be parallel to the bearing rings’ raceway. Such bearing can only bear radial load.

A needle roller bearing is genuinely a sort of bearing which employs using tiny cylindrical rollers. These rollers are important in minimizing friction create within a rotating surface. As opposed to other bearings, these needle bearings have bigger surface area places that are related in the direction of external surface area belonging in the direction of bearings, quite a whole great offer like individuals observed in ball bearing. However, much less clearance is additional to roller bearings. There is genuinely a variation in diameter and although in the shaft belonging in the direction of needle roller and ball bearings which allow them to serve numerous functions.

Needle roller bearings derive its brand using the reason that belonging in the direction of presence of thin, prolonged cylinders that are comparable in the direction of needles that people use in sewing. These bearings are accessible in lots of styles and therefore are dependent near to the sizing belonging in the direction of needles as well as the roller.

Changzhou Zhihua Bearings Co., Ltd. is a professional manufacturer and specialized for Needle Roller Bearings,Track Roller, Cam Followers and Cylindrical Roller Bearings with TS16949 Certificate.
More detail informationhttp://www.czhbearing.com/

Phone:+86-519--86382158   Mobil:+86-015295162034
Address:ADDR: Private Industrial Park,Niutang Town, Changzhou City 213163, China     Changzhou ,Jiangsu , china

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