NJ211E.M1 Single Row Cylindrical Roller Bearing 55x100x21mm Brass Cage For Gearbox Transmission Shaft Product Overview NJ211E.M1 is high-load single row cylindrical roller bearing with overall dimensions 55×100×21 mm, manufactured from high-purity GCr15 bearing steel. Adopting E upgraded roller profile and solid machined brass M1 cage, it guides cylindrical rollers evenly and steadily. Classic NJ structural layout supports heavy radial loads and single-direction axial