NNC-V NNF-V Double Row Cylindrical Roller Bearings
UTOT® Double row full complement cylindrical roller bearings incorporate a maximum number of rollers and are therefore suitable forvery heavy radial loads. However, they cannot operate at the same high speeds as caged cylindrical roller bearings.Double row full complement cylindrical roller bearings are produced as standard in four designs,three open designs and one sealed. All the bearings are non-separable and have an annular groove and three lubrication holes in the outer ringto facilitate efficient lubrication.
NNCF design (Cylindrical roller bearings double row full complement)
NNCF design bearings have three integral flanges on the inner ring and one integral flange on the outer ring enabling the bearing to provide axial location for a shaft in one direction. A retaining ringis inserted in the outer ring at the side opposite the integral flange and serves to hold the bearing together.
The inner race is provided with three ribs, while the outer race is provided with one rib, and axial location in one direction can be done. A retainer ring is mounted on one side of a rib on the outer race to make the bearing become one.
The inner race is provided with three ribs, while the outer race is provided with no rib. There are limit rings on the two sides, which make the bearing become non-separated bearing.
The inner race is provided with three ribs, and the outer race has no rib. There is a middle locking collar in the middle of the outer race, and the bearing becomes non-separated bearing. Definite axial displacement between shaft and bearing block is permitted. And the bearing can be used as free end bearing.
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