Cylindrical roller bearings

Our Cylindrical roller bearings are available in a wide range of designs, series, variants and sizes. The main design differences are the number of roller rows and the inner/outer ring flanges as well as cage designs and materials.

The bearings can meet the challenges of applications faced with heavy radial loads and high speeds. Accommodating axial displacement (except for bearings with flanges on both the inner and outer rings), they offer high stiffness, low friction and long service life.

Cylindrical roller bearings are also available in sealed or split designs. In sealed bearings, the rollers are protected from contaminants, water and dust, while providing lubricant retention and contaminant exclusion. This provides lower friction and longer service life. Split bearings are intended primarily for bearing arrangements which are difficult to access, such as crank shafts, where they simplify maintenance and replacements.

Single row cylindrical roller bearings

SKF single row cylindrical roller bearings are available in many designs, series and sizes. The major design differences between the bearings presented in this section are in:

The cage design and material
The configuration of the inner and outer ring flanges (fig. 1).

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High-capacity cylindrical roller bearings

SKF high-capacity cylindrical roller bearings have the high load carrying capacity of full complement bearings and the high speed capability of bearings with cage. They are designed for applications such as industrial gearboxes, wind turbine gearboxes and mining equipment.

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Double row cylindrical roller bearings

SKF double row cylindrical roller bearings are available in several designs with a cylindrical or tapered bore. The SKF standard assortment presented in this section includes:

NNU design bearings (fig. 1)
NN design bearings (fig. 2)
NNUP design bearings (fig. 3)

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Four-row cylindrical roller bearings

SKF four-row cylindrical roller bearings are available in several designs:

With a cylindrical or tapered bore
Open or sealed

Four-row cylindrical roller bearings are used almost exclusively for the roll necks of rolling mill stands, calenders and roller presses. Because they are normally mounted with an interference fit on the roll neck, four-row cylindrical roller bearings are well suited for rolling mill applications where the rolling speed is high.

Because four-row cylindrical roller bearings can accommodate only radial loads, they are mounted together with deep groove or angular contact ball bearings, or with tapered roller bearings (either radial or thrust design) which accommodate the axial loads.

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Single row full complement cylindrical roller bearings

SKF single row full complement cylindrical roller bearings incorporate a maximum number of rollers, as they are not equipped with a cage.

The basic SKF assortment provided here includes:

NCF design bearings (fig. 1)
NJG design bearings (fig. 2)

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Double row full complement cylindrical roller bearings

SKF double row full complement cylindrical roller bearings incorporate a maximum number of rollers, as they are not equipped with a cage.

The basic SKF assortment provided here includes:

Three different designs of open bearings:
- NNCL design (fig. 1)
- NNCF design (fig. 2)
- NNC design (fig. 3)
NNF design sealed bearings (fig. 4)

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SKF Cooper split cylindrical roller bearings

SKF Cooper split cylindrical roller bearings have one row of cylindrical rollers as well as cylindrical inner and outer ring raceways. They are designed to accommodate radial loads and are available either with (locating bearing position) or without (non-locating bearing position) outer ring flanges to fit different arrangements. Their split design makes them beneficial for inaccessible applications where mounting, dismounting and maintenance is a challenge. They are typically mounted in a cartridge that fits into different kinds of housings. The split cylindrical rolling bearings can be used in a number of different industries due to a wide range of products, from the light-duty, compact 100 Series for high operating speeds to the 03/03E Series designed for extreme loading conditions.