General description 6903-2RS Bearing ABEC-1 is a high-quality deep groove ball bearing designed for various applications. This package includes 40 pieces of thin section ball bearings, each measuring 17x30x7 mm. The bearings are self-lubricated with grease and feature two seals for enhanced protection against contaminants. Technical specifications Type: Deep Groove Ball Bearing Size: 17 x 30 x 7 mm Closures: 2 Seals Lubrication: Self-Lubricated (Grease) Material: Bearing Steel Color: Silver Package Contents: 40 x Bearing Other information Note: Light reflection and different displays may cause the color of the item to differ slightly from the actual product. The measurement allowed error is +/- 1-3 cm.