624-2RS Full Ceramic Ball Bearing, Silicon Nitride Si3N4 Races and Balls with PTFE Cage, Miniature Sealed Ceramic Bearing 4x13x5mm for High Speed, Low Friction, and Corrosion Resistant Applications

624-2RS Full Ceramic Ball Bearing Silicon Nitride
✔️ Si3N4 Ceramic Bearing with PTFE Cage 4 x 13 x 5 mm

This is a single full ceramic 624-2RS miniature ball bearing built for applications that need corrosion resistance, electrical insulation, and smooth rotation in a compact size. It’s commonly used in precision devices, small motors, instruments, and systems where steel bearings struggle.

✅ Pack size: 1 bearing
✅ Bearing type: full ceramic ball bearing
✅ Ball material: silicon nitride ceramic Si3N4
✅ Inner and outer races: full ceramic Si3N4
✅ Cage material: PTFE polytetrafluoroethylene
✅ Seal type: 2RS sealed for added protection
✅ Non conductive and corrosion resistant
✅ Works well in low lubrication and harsh environments

Dimensions
Inner Diameter 4 mm
Outer Diameter 13 mm
Width 5 mm

💡 What makes full ceramic silicon nitride miniature bearings a smart choice for precision equipment?
They are used when small size, reliability, and stability are critical.

• Silicon nitride ceramic offers low friction and high speed capability

• Full ceramic construction resists corrosion, moisture, and chemicals

• PTFE cage supports smooth motion with minimal lubrication

• Non conductive design fits electrical and sensitive applications

This bearing is a handy choice when you want compact size, smooth operation, and long service life in demanding miniature and precision setups.