23228EX1W33KC3BNLW Nachi Spherical Roller Bearing Bronze Cage : Tapered Bore Made in Japan 23228EX1W33KC3BNLW Nachi Spherical Roller Bearings, Bronze Cage, the bearing has a tapered inner ring bore (K), Made in Japan, the 23228EX1W33KC3BNLW inner diameter is 180mm, the 23228EX1W33KC3BNLW outer diameter is 250mm and the 23228EX1W33KC3BNLW width is 88mm.