10 pack 5 x 11 x 4 mm ball bearings with PTFE seals, high speed pre greased deep groove bearings for RC cars, hobby motors and precision builds, low friction PTFE sealing for smooth rotation, dust protection and long service life

5x11x4mm PTFE Sealed Ball Bearings for RC and Hobby Use
✔️ 10 Pack High Speed Pre Greased Miniature Bearings

These deep groove ball bearings are designed for RC vehicles, small electric motors, and precision hobby setups where smooth rotation and low friction are critical. They are commonly used in high-speed applications that need reliable sealing and consistent performance over long run times.

Pack size: 10 bearings packed in a protective plastic tube.

✅ Bearing size is 5 mm inner diameter x 11 mm outer diameter x 4 mm width
✅ Deep groove ball bearing design for smooth, stable rotation
✅ Double sealed with PTFE seals for very low friction and strong contamination protection
✅ PTFE seal material offers chemical resistance and high temperature tolerance
✅ Factory pre-greased and ready to install
✅ Supports high-speed operation up to 55000 RPM
✅ Ideal for RC cars, miniature motors, and precision hobby projects

Bearing Dimensions
All dimensions shown in millimeters

Inner Diameter 5.0 mm
Outer Diameter 11.0 mm
Width 4.0 mm

💡 Why are PTFE sealed ball bearings preferred for high speed RC and hobby applications?
PTFE sealed bearings are used when low friction and clean operation are more important than heavy load capacity.

• PTFE seals reduce drag compared to rubber or metal shields

• Sealed design keeps dust and moisture away from the raceways

• Pre-greased construction supports quiet running at very high RPM

These bearings are a handy upgrade for boosting smoothness, speed consistency, and reliability in RC vehicles and small precision machines.