The SKF 6313 is an open deep groove ball bearing (unsealed), with a 65mm inner diameter, 130mm outer diameter, and 31mm thickness. Constructed from high-carbon chromium steel (GCr15) with a pressed steel cage, it is designed for medium-to-high speed and medium-to-heavy load applications (e.g., industrial motors, machine tool spindles, mining machinery). It supports radial and bidirectional axial loads, offering high rigidity, impact resistance, and long service life.