6903-2RS Ceramic Bearing Stainless Steel ABEC-5 - 17x30x7mm - Sealed

S6903-2RS Hybrid Ceramic Ball Bearing - ABEC-5✔️ 17mm x 30mm x 7mm - Stainless Steel & ZrO₂ Balls - Sealed The S6903-2RS is a high-precision hybrid ceramic ball bearing featuring stainless steel rings and zirconia (ZrO₂) ceramic balls. Built to ABEC-5 standards, it delivers low-friction, smooth rotation ideal for electric motors, high-performance tools, and demanding hobby applications. This listing includes one bearing. ✅ Bearing type: Deep groove hybrid ceramic ball bearing✅ Model: S6903-2RS✅ Inner diameter: 17mm✅ Outer diameter: 30mm✅ Width: 7mm✅ Rings: Stainless steel✅ Balls: Zirconia ceramic (ZrO₂)✅ Quality: ABEC-5 rated✅ Closures: Double rubber seals✅ Lubrication: Pre-greased and sealed✅ Equivalent marking: S6903RS = 61903RS✅ Quantity: 1 bearing 💡 What’s the advantage of ABEC-5 hybrid ceramic bearings?ABEC-5 bearings offer tighter manufacturing tolerances for smoother, more accurate rotation. When combined with ceramic balls, they provide less rolling resistance, longer life,