NSKHPS™ High Performance Standard Bearings for Industrial Machinery Spherical Roller Bearings NSK successfully developed the NSKHPS series of spherical roller bearings, which provide a longer service life and higher limiting speeds, by employing leading-edge materials and technology in combination with years of cultivated experience and technical know-how. Features Bearing life increased by twofold (increased dynamic load rating by 25 %). Limiting speed increased by 20 %.