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6806-2RS Hybrid Ceramic Sealed Ball Bearing 30x42x7mm
6806-2RS Hybrid Ceramic Sealed Ball Bearing
✔️ 30mm ID - 42mm OD - 7mm Wide
The 6806-2RS is a high-performance hybrid ceramic ball bearing built with ZrO₂ ceramic balls and chrome steel races. Featuring C3 clearance, double rubber seals, and electric motor-grade quality, it's ideal for high-speed, low-friction applications like e-bikes, motors, precision tools, and demanding industrial systems.
✅ Type: Deep groove radial ball bearing (hybrid ceramic)
✅ Inside diameter: 30mm
✅ Outside diameter: 42mm
✅ Width: 7mm
✅ Balls: Zirconia ceramic (ZrO₂)
✅ Races: Chrome steel
✅ Radial clearance: C3
✅ Closures: Double rubber seals (2RS)
✅ Lubrication: Pre-lubricated with grease
✅ Quality: Electric motor-grade
✅ Quantity: 1 bearing
✅ Equivalents: 61806-2RS1, 61806RS1
✅ Category: Hybrid ceramic bearings
6806-2RS Hybrid Ceramic Sealed Ball Bearing vs. 6806-2RS Chrome Steel Sealed Ball Bearing
| Feature | Hybrid Ceramic 6806-2RS | Chrome Steel 6806-2RS |
|---|---|---|
| Inner Diameter (ID) | 30 mm | 30 mm |
| Outer Diameter (OD) | 42 mm | 42 mm |
| Width | 7 mm | 7 mm |
| Material - Races | Chrome Steel | Chrome Steel |
| Material - Balls | Zirconia Ceramic (ZrO₂) | Chrome Steel |
| Seals | Double Rubber Seals (2RS) | Double Rubber Seals (2RS) |
| Lubrication | Pre-lubricated with grease | Pre-lubricated with grease |
| Speed Rating | Higher than standard steel (low friction) | Standard speed rating |
| Wear Resistance | Excellent – low wear due to ceramic balls | Good – more wear over time |
| Heat Resistance | Higher – better for high-speed applications | Lower – limited by grease and steel balls |
| Corrosion Resistance | Better due to ceramic balls | Moderate – depends on environment |
| Noise/Vibration | Lower – smooth and quiet operation | Higher – more susceptible to noise |
| Weight | Slightly lighter (due to ceramic balls) | Heavier |
| Cost | Higher | Lower |
| Use Case | High-performance, electric motors, racing | General industrial and mechanical use |
💡 Why choose hybrid ceramic bearings with C3 clearance?
Ceramic balls reduce rolling resistance, heat, and wear.
C3 clearance provides extra room for thermal expansion at high speeds.
Perfect for applications needing high RPM, low noise, and extended bearing life.
When you need serious performance in a slim profile - this 6806-2RS hybrid ceramic bearing gets the job done quietly and cleanly!