The SKF 6309-2RS is a deep groove ball bearing with double-sided rubber seals (2RS), featuring a 45mm inner diameter, 100mm outer diameter, and 25mm thickness. Made of GCr15 steel with a pressed steel cage and NBR rubber seals, it is ideal for harsh environments with moisture, dust, and liquid splashes (e.g., marine machinery, wastewater treatment, agricultural irrigation). It handles radial and bidirectional axial loads, offers IP65 protection, low friction, and corrosion resistance.