6903-2RS Full Ceramic Sealed Bearing 17x30x7mm ZrO2

6903-2RS Full Ceramic Ball Bearing
✔️ ZrO2 Ceramic, PTFE Sealed, 17x30x7mm

This 6903-2RS bearing is fully made from zirconium oxide (ZrO2) ceramic with a PTFE (Teflon®-like) cage and seals. It’s corrosion-resistant, non-magnetic, and designed for use in harsh environments like chemicals, high humidity, or clean rooms. Perfect for precision gear where metal just won’t cut it. Sold as one bearing.

✅ Inner diameter (ID): 17mm
✅ Outer diameter (OD): 30mm
✅ Width: 7mm
✅ Balls: ZrO2 ceramic
✅ Inner/outer rings: ZrO2 ceramic
✅ Cage: PTFE
✅ Closures: PTFE covers
✅ Type: Full ceramic deep groove bearing
✅ Pack size: One bearing

💡 Why use full ceramic bearings in harsh or specialty environments?
They handle extreme conditions where steel can’t survive.

• Non-magnetic and corrosion-resistant

• Operates well in wet, acidic, or vacuum conditions

• Lower friction and thermal conductivity

• Ideal for medical tools, semiconductor, and food-grade use

If you're building for the extremes, this bearing's the real deal. Add it to your cart and level up your performance!