S6903-2RS Ceramic Bearing Si3N4 Premium ABEC-7 17x30x7mm

S6903-2RS Hybrid Ceramic Ball Bearing
✔️ ABEC-7 Precision - 17mm x 30mm x 7mm, Si₃N₄ Ceramic Balls

The S6903-2RS is a high-performance hybrid ceramic bearing built for smooth, high-speed performance. Featuring stainless steel rings and cage with Si₃N₄ ceramic balls, this bearing runs cooler and faster with less friction. Double rubber seals keep contaminants out and grease in. Premium ABEC-7 quality, sold as one bearing.

✅ Inner Diameter: 17mm
✅ Outer Diameter: 30mm
✅ Width: 7mm
✅ Material: Stainless steel rings and cage
✅ Balls: Silicon Nitride (Si₃N₄) ceramic
✅ Radial clearance: C0
✅ Double rubber sealed (RS/2RS1 type)
✅ Pre-lubricated with SRL grease
✅ Precision rating: ABEC-7 EMQ standard
✅ Quantity: 1 bearing

Equivalents:
☑️ 6903-2RS1
☑️ SS61903-2RS1 P4
☑️ SS61903RS1
☑️ 6903-2RZ

💡 What are the advantages of Si₃N₄ ceramic hybrid ball bearings?
They’re designed for top-end performance and efficiency.

• Ceramic balls are lighter and harder than steel

• Lower friction for higher RPM and less heat buildup

• Better corrosion and wear resistance

• Perfect for e-motors, medical devices, and precision tools

If you’re chasing precision, smooth speed, and durability, this bearing’s the real deal. Grab it now and roll like a pro!