They have lower friction than other roller bearings and can be successfully used where high-speed operation is called for. The low cross-sectional height of cylindrical roller bearings means that the roll necks can have large diameter in relation to the roll itself. In four rows cylindrical roller bearings, the rollers are guided between integral or not-integral flanges on the outer ring.
The inner ring is without flanges; the bearing within certain limits can therefore accommodate axial displacement of the shaft with respect to the housing.
Depending on the application, four rows cylindrical roller bearings can be supplied with a cylindrical bore or tapered bore. The inner or outer ring may be in one piece or in more than one piece.
Types radial cylindrical roller bearings can be listed as below:
- Radial cylindrical roller bearings, four rows with cylindrical bore
- Radial cylindrical roller bearings, four rows with tapered bore
- Radial cylindrical roller bearings, six rows with cylindrical bore
Rotary Table Bearings
The main characteristics of this type of combined bearing are: high running precision, high rigidity at tilting moments and high carrying capacities. These features together with the wide dimensional range make this bearing the right solution for rotary tables, swivel heads, measuring instruments and automation systems.