Four column cylindrical roller bearings

Four column cylindrical roller bearings can provide a variety of different designs:

With cylindrical or conical holes

Open or sealed

Four column cylindrical roller bearings are almost exclusively used for the roll necks of rolling mills, rolling mills, and rolling presses. Due to the fact that these bearings are usually installed on the roll neck with interference fit, four column cylindrical roller bearings are particularly suitable for applications in high-speed rolling mills.

Due to the fact that four column cylindrical roller bearings can only bear radial loads, they are installed together with deep groove or angular contact ball bearings, or with tapered roller bearings (radial or thrust design) that bear axial loads.

Bearing characteristics:

Very high load-bearing capacity

Due to the large number of rollers, four column cylindrical roller bearings are suitable for very heavy radial loads.

Low friction (roller end/edge contact area)

The open edge design, roller end design, and surface smoothness are beneficial for the formation of lubricating oil film, resulting in lower friction.

long service life

The logarithmic curve profile of the roller reduces the edge stress at the contact between the roller and the raceway, and is also beneficial for the bearing to withstand misalignment and shaft deflection.

Improve operational reliability

The surface treatment of the contact surface between the roller and the raceway is beneficial for the formation of a hydrodynamic lubricating oil film.

Separable and interchangeable

The separation components of four column cylindrical roller bearings are interchangeable. This facilitates installation, disassembly, maintenance, and inspection.

High speed capability

The cage design is suitable for high-speed, rapid acceleration, and impact loads.

Low cross-sectional height

The low cross-sectional height of four column cylindrical roller bearings allows for the use of roller neck diameters that are larger than the roller diameter.