These bearings are typically used in combination with double direction angular contact thrust bearings in applications where radial stiffness, high radial capacity and high precision support is required.
Double row cylindrical roller bearings have a high load carrying capacity because of the high number of cylindrical rollers in each row, and the exclusive optimized roller crown profile which results in the best load distribution.
A single row bearing (N10, N19) would be most commonly used as the "floating" bearing in combination with a set of preloaded angular contact spindle bearings.
For axial loads, double direction angular contact thrust bearings, Series 2344 are used in combination with Series NN30 bearings.
The cage is of solid brass construction, making this bearing suitable for rugged applications. They are particularly suited for the demands of turning spindles. Available with ceramic rollers for higher speeds.
Cylindrical roller bearings can be lubricated with either grease or oil. Double row bearings feature a lubricating groove and lubricating hole in the middle of the outer ring.