10-Pack 634ZZ Ball Bearing 4x16x5mm - Shielded - Miniature

634ZZ Shielded Ball Bearings
✨ 4x16x5mm Chrome Steel - Pack of 10

This 10-pack of 634ZZ miniature ball bearings is made from high-strength chrome steel for long-lasting durability and high-speed performance. Each bearing features double metal shields to keep out dust and debris, and comes pre-lubricated with grease for smooth, maintenance-free rotation - ideal for hobby gearboxes, RC cars, and small mechanical systems.

🟢 Quantity: 10 Bearings
🟢 Size: 4mm inner x 16mm outer x 5mm width
🟢 Material: Chrome steel
🟢 Type: Deep groove ball bearings
🟢 Shield Type: Double metal shields (ZZ)
🟢 Lubrication: Pre-lubricated with grease
🟢 Dynamic Load Rating (Cr): 1,750 N
🟢 Static Load Rating (Cor): 670 N
🟢 Max Speed (Grease): 40,000 RPM

🟢 Common Equivalents:
KOYO 634ZZ - NSK 634ZZ - NMB R-1640ZZ