1. Product Overview 22220KMW33/C3 is double row metric spherical roller bearing, overall dimension 100×180×46mm. K represents 1:12 tapered inner bore, matched with adapter sleeve for quick installation; W33 stands for annular lubrication groove plus 3 oil holes on outer ring for convenient on-site relubrication; M machined brass cage improves roller stability under heavy vibration; C3 enlarged radial clearance adapts high-temperature, high-speed and vibration working