Have you know a bearing can be defined as a member specifically designed to support moving machine components. All have benefits and disadvantages to them and so are used for different purposes and in different circumstances. They are used regularly in industrial linear motion systems which require exact and precise angles and rigidity. There are various kinds of bearings which have different shapes and functions.Needle Bearing
they are also known as needle roller bearings. Needle roller bearing sizes and designs vary depending on their usage and application areas. it usually contains three parts, an inner race or shaft, a needle cage and an outer race or shaft. These rollers are essential in reducing friction created in a rotating surface. Needle roller Single Row Deep Groove Ball Bearings derive its name because of the presence of thin, long cylinders which are comparable to the needles that we use in sewing. There are two basic designs for needle roller bearings: one is the full complement or loose-needle; and the other is the caged-needle bearing designs. Inner rings may be used economically as bushings without any need of additional machining. Caged needles on the other hand contain cages with specific roller spacing and guidance.