R4AZZ Nachi Bearing Shielded Japan 1/4" x 3/4" x 9/32"R4AZZ Nachi Shielded Ball Bearing 1 4" x 3 4" x 9 32" inch Made in Japan R4AZZ Nachi Shielded Ball Bearing, inner diameter is 1 4", outer diameter is 3 4" and width is 9 32", Made in Japan R4AZZ Nachi Ball Bearing Nachi Deep groove Ball Bearing Closures: Double metal shields (Z ZZ 2Z) for protection against dust and debris Dimensions: 1 4" x 3 4" x 9 32" inch ID (inner diameter) Bore: 1 4" inch OD (outer diameter): 3 4" inch Width: 9 32" inch