10 Pack 6801-2RS Sealed Ball Bearings 12mm X 21mm X 5mm With PTFE Seals Double Shielded Low Friction For Precision Machinery Industrial Equipment Robots Drones And Hobby Projects

Ten-Pack 6801-2TS Sealed Ball Bearings 12x21x5mm
✔️ Pack of 10, PTFE sealed, grease-lubed, 12x21x5mm

These 12x21x5mm sealed ball bearings feature PTFE non-contact seals to shield the bearing from dust and contamination. Pre-lubricated with grease for smooth operation, they're ideal for hobby RC cars, model aircraft, and compact machinery where reliable rotation matters.

✅ Size: 12 mm ID, 21 mm OD, 5 mm width (12x21x5mm)
✅ Seals: PTFE non-contact seals for dust protection
✅ Lubrication: grease pre-lubed for immediate use
✅ Load ratings: Cr 1,920 N dynamic; Cor 1,040 N static
✅ Speed: up to 20,000 RPM with grease lubrication
✅ Pack: 10 bearings per lot
✅ Fits: standard 12x21x5 mm bore for RC cars and small machines

💡 What is a sealed ball bearing with PTFE seals best used for in hobby machinery and RC gear? These handy bearings protect moving parts in dusty environments while keeping friction low. - Handy for RC cars, drones, and small automation projects - Dust and moisture protection improves longevity in rough settings - Standard 12x21x5mm bore makes retrofitting easy - Pre-lubricated grease reduces maintenance and downtime