Sealed Ball Bearing 12x21x5mm Dual Seals for RC Cars, Drones and Motors, Dust Protection and Smooth Rotation, 6801 Series Bearing with High Precision and Long Lifespan, Ideal for Hobby Enthusiasts and Replacement Parts

Sealed 12x21x5mm Ball Bearing 6801DU, Pre-lubricated
✔️ 12mm ID, 21mm OD, 5mm width; chrome steel; greased; 1 bearing

These sealed ball bearings measure 12x21x5 mm and are commonly used in RC wheel hubs, micro motors, and compact machinery for smooth, reliable rotation right out of the box.

✅ Size: 12 mm ID x 21 mm OD x 5 mm width
✅ Material: Chrome steel bearing race with 2 seals
✅ Lubrication: Pre-lubricated grease; low friction operation
✅ Seals: Two shields protect against dust and contamination

💡 What is a sealed ball bearing used for in hobby projects?

These bearings are handy components that help projects run smoothly in tight spaces. Handy for wheels, gimbals, and micro motor setups.

- common uses include RC wheel hubs, micro motors, and small linear actuators - handy for dusty environments where a shielded bearing lasts longer - reliable option when you need quick replacements and minimal maintenance - compatible with standard 12x21x5 mm sealed bearing sizes

6801DU Cuscinetto a sferaSealed 12mm x 21mm x 5mm 1 Cuscinetto a sfera