S6903-2RS Hybrid Ceramic Sealed Ball Bearing - PREMIUM ABEC-7

S6903-2RS Hybrid Ceramic Sealed Ball Bearing✔️ ABEC-7 - 17mm x 30mm x 7mm - Si₃N₄ Balls & Stainless Steel Rings The S6903-2RS is a premium hybrid ceramic ball bearing featuring precision ABEC-7 tolerances and non-contact rubber seals. It combines stainless steel races with ultra-lightweight, high-speed silicon nitride (Si₃N₄) ceramic balls. Ideal for high-performance electric motors, e-mobility, robotics, and aerospace systems. This listing is for one bearing. ✅ Bearing type: Deep groove hybrid ceramic ball bearing✅ Model: S6903-2RS✅ Inner diameter: 17mm✅ Outer diameter: 30mm✅ Width: 7mm✅ Balls: Silicon nitride (Si₃N₄) ceramic✅ Rings: Stainless steel✅ Cage: PA66 (nylon)✅ Quality: ABEC-7 rated for ultra precision✅ Clearance: C3✅ Seals: Double non-contact rubber seals✅ Lubrication: SRL grease (self-lubricated)✅ Quantity: 1 bearing 💡 Why choose Si₃N₄ ceramic hybrid bearings for high-speed applications?Si₃N₄ ceramic balls are lighter, harder, and smoother than steel, resulting in lower