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- 2019年7月4日 - 下午12:19 #294Nowseore游客
Rollers bearing consist of cylindrical rolling elements placed between the two bearing rings. The rollers rotate along with the inner ring to facilitate smooth movement and to reduce the friction. The relative movement of bearing race and the roller elements is responsible for bringing down the friction created in a rotating surface. A rollers bearing can tolerate a lot more weight than the ball bearing and is therefore used in a number of types of heavy duty machinery. Rollers bearings have larger surface contact areas with bearing rings which makes them carrying very high loads. These are most popular type of bearing and are used in conveyor belts and machineries. There are mainly 4 types of roller bearings such as spherical roller bearing, cylindrical roller, tapered and needle roller bearing. Let us have a brief introduction about each one of them
Tapered Roller Bearings
Tapered rollers bearings http://www.northfag.com/ have a conical roller rotating between conical bearing races. The inner and outer races of the bearing consist of conical race and the rollers end in a tapered structure so that the cone surfaces of the raceways and that of the rollers meet in a common point on the bearing’s main axis. Due its structure, it can support highest axial and roller loads. The negative side of this type of bearing is that complexity involved in manufacturing and due to this it is not economical in many applications.
Cylindrical Roller Bearings
These are most common type of roller bearings use. In structure, it has cylinder shaped rollers rotating between the bearings races. These are one of the oldest types of bearings used.
Spherical Roller Bearings
Spherical roller bearings have the spherical internal surface for the outer ring. The rollers are little bit thicker in the center and thinner towards the end so as to fit the surface of the spherical inner surface of the outer ring. Due to this, it can accommodate slight misalignment of the axis. Due to very high surface contact, this can support maximum axial and radial loads.
NORTH INTERNATIONAL was founded in 2008, the main products include spherical roller bearings, cylindrical roller bearings, tapered roller bearings, spherical roller thrust bearings, deep groove ball bearings, angular contact ball bearings and related parts. Brands are SKF, FAG, NTN, NSK, IKO, KOYO, TIMKEN.