RC 、ドローン、Seals 12x21x5mm Seals Sealed ベアリング。防塵性と滑らかな回転を実現。高精度・長Series 。ホビー愛好家や交換用パーツとして最適

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 Sealed ボールベアリング 12mm x 21mm x 5mm 1 ボールベアリング