6306ZZE Nachi Bearing 30x72x19mm Shielded C3 Japan cartridge bearing outer diameter is5/16" and the

outer diameter is5/16" and the width is 1/8"

NU207EG width is 17mm

Size: 35 x 80 x 34

the 6330 outer diameter is 320mm

Deep groove radial ball bearing

6306ZZE Nachi Bearing 30x72x19mm Shielded C3 Japan cartridge bearing outer diameter is5/16" and the6306ZZE Nachi Bearing 30mm x 72mm x 19mm Made in Japan 6306ZZE Nachi Bearing, the 6306ZZE inner diameter is 30mm, the 6306ZZE outer diameter is 72mm, 6306ZZE width is 19mm. 6306ZZE Nachi Ball Bearing Nachi Deep groove Ball Bearing Closures: Double metal shields (Z ZZ 2Z) for protection against dust and debris Radial Clearance: C3 Dimensions: 30mm x 72mm x 19mm Metric ID (inner diameter) Bore: 30mm OD (outer diameter): 72mm Width: 19mm Size: 30 x 72 x