10 PCS 6808-2RS Deep Groove Ball Bearings, 40mm Bore 52mm OD 7mm Thick, Chrome Steel Double Sealed Bearing for Motors Pumps Conveyors

Key features

• ✅ Premium Bearing Steel Construction for Superior Durability: Crafted from high-quality bearing steel, our bearings deliver exceptional hardness, wear resistance, and load-bearing capacity. The precision-forged steel structure ensures long-term stability even under continuous rotation, minimizing deformation and extending service life for both industrial and DIY applications.
• ✅ Double Rubber Seals for Effective Contamination Protection: Equipped with double-sided RS rubber seals, these bearings create a reliable barrier against dust, dirt, moisture, and debris. The sealed design keeps lubrication locked inside and harmful contaminants out, reducing maintenance frequency and preventing premature failure, making them ideal for harsh operating environments.
• ✅ Ultra-Smooth Operation & Low Noise Performance: Each bearing undergoes strict precision grinding and polishing processes, ensuring ultra-smooth rotation with minimal friction and noise. The optimized internal clearance and high-precision balls deliver consistent, quiet performance, perfect for applications requiring smooth operation.
• ✅ Standard Dimensions for Wide Compatibility: With standard 40mm x 52mm x 7mm (ID x OD x Width) dimensions, our 6808RS bearings are fully compatible with a vast range of equipment, including 3D printers, CNC machines, skateboards, inline skates, electric motors, and industrial automation components. electric vehicles, household appliances and office equipment, industrial transmission and light machinery, automation and precision instruments, transportation and vehicles, agricultural machinery and horticulture, models and fitness equipment ect.
• ✅ Pre-Lubricated for Ready-to-Use Convenience: Every bearing is pre-filled with high-performance, long-lasting lithium-based grease at the factory, eliminating the need for manual lubrication before installation. The premium grease reduces friction, prevents rust.

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