1. Product Overview NJ 212 EM1 is single row cylindrical roller bearing with inner ring single rib structure. E represents optimized enhanced internal geometry for higher load capacity; M1 stands for two-piece solid machined brass cage guided by rollers. It mainly withstands heavy radial load and can sustain limited unidirectional axial thrust. Open design supports convenient re-lubrication and maintenance. Widely applied on industrial gearboxes, large motors, compressors and