Major Brand Needle Roller Inner Ring LR50x55x20.5mm

LR Series Inner Rings : Made from carbon chromium steel and hardened. The bore and outside diameter are ground, however the sides are not ground and the edges are only smoothed. Used in applications where the larger width is required and run out tolerances are unimportant. LR series inner rings are economical and can be used in combination with amongst others the HK, BK and cage type needle roller bearings.
Benefits: Economical, wider bearing surface