699-2RS ZrO2/Si3n4 Full Ceramic Bearing PTFE based Grease
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699-2RS Full Ceramic Bearing
✔️ ZrO2/Si3N4 with PTFE Grease - 9mm x 20mm x 6mm
This 699-2RS bearing is a full ceramic design using ZrO2 (zirconium oxide) races and Si3N4 (silicon nitride) balls. It's lubricated with PTFE-based grease, built to handle high speeds, low noise, and extreme temperatures. Ideal for clean-room setups, chemical-resistant environments, or high-precision gear.
✅ Size: 9mm ID x 20mm OD x 6mm wide
✅ Inner/Outer Rings: ZrO2 Ceramic
✅ Balls: Si3N4 Ceramic
✅ Seals: 2 Rubber Seals (2RS)
✅ Grease: PTFE-based, low-noise, long-life
✅ Temperature Range: -50°C to 150°C (-58°F to 302°F)
✅ Commonly used in robotics, high-speed tools, and chemical equipment
✅ Quantity: 1 Bearing
Dimension Table:
| ID (mm) | OD (mm) | Width (mm) | Ball Material | Race Material | Temp Range | Lubrication |
|---|---|---|---|---|---|---|
| 9 | 20 | 6 | Si3N4 Ceramic | ZrO2 Ceramic | -50°C to 150°C | PTFE-based Grease |
💡 What makes full ceramic bearings better for extreme environments?
They shine in demanding setups thanks to:
- Non-metallic, non-magnetic construction for purity and precision
- Resistance to acids, alkalis, and corrosion
- Operation without electric arcing
- PTFE grease ensures low friction and wide temperature stability
Tough, quiet, and made to last, grab this high-performance ceramic bearing for your next critical build!