SKF cylindrical roller bearings are available in many designs, series and sizes. The majority are single row bearings with a cage. High-capacity bearings, single and double row full complement bearings (without a cage) complete the SKF standard assortment listed in this catalogue.
Bearings with a cage can accommodate heavy radial loads, fast accelerations and high speeds. Full complement bearings incorporate a maximum number of rollers and are therefore suitable for very heavy radial loads at moderate speeds. SKF high-capacity cylindrical roller bearings combine the high load carrying capacity of a full complement bearing with the high speed capability of a bearing with a cage.
The factors that influence SKF cylindrical roller bearing performance and service life include but are not limited to the following:
1.Roller end/flange contact area
2.Logarithmic roller profile
3.Surface finish
4.Interchangeable components
The SKF range of cylindrical roller bearings comprises the basic types :
1.single row cylindrical roller bearings, caged, mainly of the NU, NJ, NUP and N designs
2.double row cylindrical roller bearings, caged, mainly of the NNU and NN designs
3.multi-row cylindrical roller bearings, caged
4.single row full complement cylindrical roller bearings, mainly of the NCF and NJG designs
5.double row full complement cylindrical roller bearings, mainly of the NNF design
6.multi-row full complement cylindrical roller bearings, with four or eight rows of rollers
The rollers in a single row cylindrical roller bearing are always guided between the integral "open" flanges on one of the rings. These "open" flanges combined with the specially designed and surface treated roller ends, provide improved lubrication, reduced friction and consequently lower operating temperature.
.The ring with the integral flanges together with the cylindrical roller and cage assembly can be separated from the other ring. This results in easy mounting and dismounting, particularly where the load conditions are such that interference fits are required for both rings. .SKF single row cylindrical roller bearings can accommodate heavy radial loads and high speeds. They are manufactured in several different designs, the main difference being in the configuration of the flanges. The most popular are the NU, N, NJ and NUP designs. .NU design
The outer ring of bearings of the NU design has two integral flanges and the inner ring is without flanges. Axial displacement of the shaft with respect to the housing can be accommodated in both directions within the bearing itself. The bearings are therefore used as non-locating bearings. For manufacturing and maintenance reasons, the two outer ring flanges of large-size bearings of the NU design which are identified by a Drawing No. may not be integral but take the form of loose flange rings.
We have almost every models of Cylindrical Roller Bearing with brands:SKF, NSK, NTN, FAG, TIMKEN, INA, IKO, KOYO, NACHI .So, pls contact us if you have any needs.
