China Famous Brand Miniature Deep Groove Ball Bearings (636/637/638/639 Series)

Premium Material & Precision Craftsmanship
High-carbon chromium steel construction ensures durability and corrosion resistance. Precision grinding delivers smooth rotation with minimal friction, backed by ABEC-1 tolerance standards for reliable performance.
Wide Compatibility & Compact Design
Miniature size (ID 6-9mm, OD 15-22mm) fits tight spaces, ideal for small machinery, electric motors, drones, RC models, and DIY tools.
Ultra-Fast Delivery & Bulk Savings
Direct factory pricing with global wholesale support. Order in bulk for unbeatable per-unit costs, shipped worldwide within 3-5 business days.
Versatile Industrial & Hobbyist Use
Perfect for high-speed applications: conveyor systems, automotive parts, household appliances, and robotics. Low-noise operation enhances user experience.
Globally Trusted Brand Assurance
Manufactured under strict ISO standards. Each bearing undergoes rigorous testing for load capacity (radial + axial) and longevity—backed by a 1-year warranty. Upgrade your projects with professional-grade bearings at unmatched prices. Stock up now for seamless performance!