Four-Row Cylindrical Roller Bearings

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.

Bearing features

• Exceptional high load carrying capacity
  Because of their high number of rollers, four-row cylindrical roller bearings are suitable for very heavy radial loads.
• Low friction (Roller end / flange contact area)
  The open flange design, together with the roller end design and surface finish, promote lubricant film formation resulting in lower friction.
• Long service life
  The logarithmic roller profile reduces edge stresses at the roller/raceway contact and sensitivity to misalignment and shaft deflection.