High load carrying capacity Spherical Roller Bearings are designed to accommodate both heavy radial loads and axial loads in both directions.

Long service life The rollers are manufactured to such tight dimensional and geometrical tolerances that they are practically identical in a roller set.

The symmetrical rollers self-adjust, providing optimal load distribution along the roller length and together with the special profile prevent stress peaks at the roller ends.

Low friction Self-guiding rollers keep NSK 6303ddu Bearing friction and frictional heat at low levels.

A floating guide ring guides unloaded rollers so that they enter the load zone in the optimal position.