Spherical Roller Bearings for Vibrating Machines for high stresses due to vibration, NPB manufactures double-row spherical roller bearings in special design, with reduced dimensional tolerances and increased radial clearance. The rolling bearings of vibrating machines must also absorb accelerations and centripetal forces, in addition to high loads and rotational speeds,unfavorable conditions, such as dirt and moisture, often prevail. NPB's special spherical roller bearings are suitable for operating conditions in vibrating machines and are able to withstand dynamic angular errors.