1. Product Overview 61801-2RS/C3 is thin wall miniature single row deep groove ball bearing, dimension 12×21×5mm. Double 2RS rubber contact seals lock internal grease and block dust, moisture and debris. C3 enlarged radial clearance adapts to high temperature and high-speed expansion. Deep groove raceway bears bidirectional radial and light axial loads, widely used for micro motors, optical instruments, medical devices and small automation equipment. 2. Technical Specificatio