... Bearing <1>Dimension <2>Speed Ratings <3>Weight d:20-2440 mm 160-22000 r/min 1- ... 2570kg D:40-2620mm H:12-380mm <4>OthersMaterial:bearing steel,chrome steel, ... Designs includes: · Single row cylindrical roller bearings o Bearing series: N, NJ, NU, NUP· Double row cylindrical ... roller bearings o Bearing series: NN3000, NN4900, NNU4900· Four row cylindrical ...