NSK 6306 Deep Groove Ball Bearing by NSK SKU: NSK 6306 Out of Stock $19.45 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Out of Stock NSK 6306 Deep Groove Ball Bearing Inside Diameter: 30mm Outside Diameter: 72mm Width: 19mm Seal Type: Open (no seal)