NN3006M2KC9NAP4BNLZ Nachi Cylindrical Roller Bearing 30mm x 55mm x 19mm Bronze Cage : Tapered Bore Made in Japan NN3006M2KC9NAP4BNLZ Nachi Cylindrical Roller Bearings, Steel Cage, Made in Japan, the NN3006M2KC9NAP4BNLZ inner diameter is 25mm, the NN3006M2KC9NAP4BNLZ outer diameter is 47mm, NN3006M2KC9NAP4BNLZ width is 16mm.