




Hybrid Ceramic S6808-2RS Ball Bearing 40x52x7mm - Sealed
UPC: 00193019321256
Type: Deep Groove
Cage: Steel Cage
Balls: Ceramic
Quantity : One Ball Bearing
S6808-2RS Hybrid Ceramic Sealed Ball Bearing
✔️ 40mm x 52mm x 7mm - Ceramic Balls, Stainless Steel Races, Sealed
The S6808-2RS is a high-speed, hybrid ceramic deep groove ball bearing designed for precision, low-friction performance in a compact profile. Featuring lightweight Si₃N₄ ceramic balls, stainless steel races, and a steel cage, this bearing is sealed on both sides with rubber to block out dust and contaminants. It's pre-lubricated with SRL-grade grease for long-lasting, smooth rotation, making it ideal for cycling hubs, e-motors, robotics, and other demanding applications.
✅ Size: 40mm ID x 52mm OD x 7mm width
✅ Type: Deep groove radial ball bearing
✅ Balls: Ceramic (Si₃N₄)
✅ Cage: Steel
✅ Races: Stainless steel
✅ Clearance: C0 (standard)
✅ Closures: Double rubber sealed (2RS)
✅ Lubrication: Greased (SRL), self-lubricated
✅ Quantity: 1 bearing
✅ Brand: VXB
✅ Equivalents: 6808-2RS1, 6808-2RZ
💡 Why go ceramic in a thin-section bearing?
Ceramic balls are smoother and lighter, reducing rolling resistance and internal heat while allowing for higher RPMs. They also resist corrosion and wear better than steel, especially in semi-wet or harsh conditions.
Perfect for high-efficiency systems where space, speed, and durability matter most.
🔍 Comparison Table: S6808-2RS (Hybrid Ceramic) vs. 6808-2RS (All-Steel)
Feature | S6808-2RS (Hybrid Ceramic) | 6808-2RS (All Steel) |
---|---|---|
Inner Diameter | 40mm | 40mm |
Outer Diameter | 52mm | 52mm |
Width | 7mm | 7mm |
Ball Material | Silicon nitride (Si₃N₄) | Chrome/stainless steel |
Cage | Steel | Steel |
Race Material | Stainless steel | Chrome/stainless steel |
Sealing | Rubber sealed (2RS) | Rubber sealed (2RS) |
Friction/Speed | Lower friction, higher RPM | Standard |
Ideal Use | High-speed, low-friction setups | General machinery, economy |
Choose S6808-2RS hybrid for precision, speed, and durability in tough environments. Opt for 6808-2RS all-steel when you want a dependable, cost-effective bearing for general applications.