6801-2RS Hybrid Ceramic Bearing 12x21x5mm Si3N4 Premium ABEC-5

S6801-2RS Hybrid Ceramic Ball Bearing - Premium ABEC-5
✔️ 12mm x 21mm x 5mm - Si3N4 Ceramic Balls - Stainless Steel - Double Sealed

The S6801-2RS is a high-performance hybrid ceramic deep groove ball bearing designed for smooth, low-friction rotation in tight spaces. With a stainless steel outer structure, Si3N4 ceramic balls, and rubber seals on both sides, it's built for high-speed, high-precision environments like 3D printers, robotics, and race-grade cycling.

✅ 1 hybrid ceramic bearing per pack
✅ Size: 12mm ID x 21mm OD x 5mm width
✅ Type: Deep groove radial bearing
✅ Balls: Si3N4 ceramic - lightweight, hard, and heat-resistant
✅ Rings: Stainless steel - corrosion resistant
✅ Cage: Nylon - reduces weight and friction
✅ Closures: Double rubber seals (2RS/RS1)
✅ Lubrication: Pre-greased with SRL grease
✅ Precision: ABEC-5 / EMQ electric motor quality
✅ Clearance: C3 for thermal expansion and high RPM
✅ Equivalent to: 6801-2RS1, 6801-2RZ