SKF 6313 Deep Groove Ball Bearing – Single Unit Reliable high-performance deep groove ball bearing, ideal for general-purpose use in industrial and automotive applications. Specifications: Model: SKF 6313 Type: Deep groove ball bearing Bore Diameter: 65 mm Outer Diameter: 140 mm Width: 33 mm Material: Hardened chrome steel Cage: Polyamide (PA6) standard Precision Class: ISO Class 6 (normal)