Specification: Model: 6002-2RS Material: Bearing steel Type: Suitable for speeds not exceeding 2000rpm (high speed cannot be used, the noise is loud) Features: Flexible rotation Rolling Element: Single row Inner Diameter: 15mm / 0.9in Outer Diameter: 32mm / 1.3in Thickness: 9mm / 0.4in Quantity: 10pcs Package Weight: 297g Package List: 10 x Bearings