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  Types of Bearings

 

Taper Roller Bearings:
 Taper roller bearings consists of two main units, a cup and a cone. The cup is on the outer race whereas the cone consists of inner race, the separator and compliment of taper rollers. The taper rollers are guided by the high load on the inner race. The taper roller bearings are manufactured with interchangeable cups and cone on the shaft separately.
These bearings are capable of carrying both the radial and axial loads and permit fine adjustment for end play. Greater care is required to ensure the proper alignment of bearings and maintenance of proper axial clearance is essential to avoid bearing failure. Due to more development in the design of the taper roller bearings, these are also available with 2 rows and 4 rows.

Needle Roller Bearings:
Needle roller bearings comprise of special form of cylindrical roller bearings in which the rollers are of a very small diameter and comparatively long therefore they have the advantage of a very small difference bet
These bearings are detachable and suitable for carrying only radial loads. Various designs of needle roller bearings are available and depending upon the designs of the bearing assembly. Needle roller bearings may be used either without an inner race or outer race or even without any races merely using a set of needle rollers. In all these cases the shaft or the housing should be strictly of the same qualities as of the bearings races( Hardness, Accuracy and finish); Needle roller bearings are found applicable where space is restricted and mostly where the units are oscillating.

 

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