Features
The bearings have solid outer and inner rings and rib-guided cylindrical rollers. Since they have the maximum possible number of rolling elements, these bearings have extremely high radial load carrying capacity and high rigidity and are suitable for particularly compact designs. Due to the kinematic conditions, however, they do not achieve the high speeds that are possible when using cylindrical roller bearings with cage.
Double row full complement cylindrical roller bearings are available as non-locating, semi-locating and locating bearings. 
Inner and outer ring is not allowed relative deflection.
KMR bearings have lower roughness Ra and higher geometrical accuracy of the raceways than standard bearings. As a result, they have higher load carrying capacity and longer life for the same dimensioning.

Non-locating bearings
SL0248 and SL0249 series bearings are non-locating bearings and can only support radial forces only. 
The bearings are held together in handling and transport by a transport and mounting retaining device on the inner side of outer ring. This retaining device can be subjected to axial load.

 Semi-locating bearings

SL1850 series bearings are semi-locating bearings. They can support not only high radial forces but also axial forces in one direction and can therefore guide shafts axially in one direction. They act as non-locating bearings in the opposite direction. 
The bearings are held together in handling and transport by a transport and mounting retaining device on the no-rib side of outer ring. This retaining device must not be subjected to axial load.

Locating bearings
Cylindrical roller bearings SL0148 and SL0149 are locating bearings. These bearings can support axial forces from both directions as well as radial forces. The outer ring has ribs on both sides, is axially split and held together by fasteners. The inner ring has an additional central rib except for ribs on both sides. The fasteners on the outer ring must not be subjected to axial load.

Cable sheave bearings
Cable sheave bearings(cylindrical roller bearings with snap ring grooves) are locating bearings. 
These bearings are very rigid and can support axial forces in both directions as well as high radial forces. They have solid outer and inner rings with ribs, rib-guided cylindrical rollers and sealing rings.
The outer rings have grooves for retaining rings. The inner rings are axially split, 1 mm wider than the outer rings and held together by a rolled-in steel strip.
The bearings are available as a light series SL04..-PP and in the dimension series 50 as SL0450..-PP.

Sealing
Sealing rings on both sides of cable sheave bearings protect the running system against contamination and moisture. Cylindrical roller bearings do not have sealing rings except cable sheave bearings.

For locating bearings without sealing rings, they can be lubricated with oil or grease via the lubrication groove and holes on the outer ring.

The cable sheave bearings are greased with a lithium complex soap grease and can be relubricated via the outer and inner ring.

 Operating temperature 

Full complement cylindrical roller bearings without sealing rings are suitable for operating temperatures from –30 °C to +120 °C. 
The cylindrical roller bearings with snap ring grooves are suitable for operating temperatures from –20 °C to +80 °C, limited by the grease and the seal material.