FULL 6004-2RS Full Ceramic Ball Bearing, Silicon Nitride Si3N4 Races and Balls with PTFE Cage, Sealed Ceramic Bearing 20x42x12mm for High Speed, Corrosion Resistant Applications

6004-2RS Full Ceramic Ball Bearing Si3N4
✔️ PTFE Cage Silicon Nitride Bearing 20 x 42 x 12 mm

This is a single full ceramic 6004-2RS ball bearing built for applications that need corrosion resistance, electrical insulation, and smooth running with minimal lubrication. It’s commonly used in chemical environments, high speed equipment, and systems where steel bearings wear or corrode too fast.

✅ Pack size: 1 bearing
✅ Bearing type: full ceramic ball bearing
✅ Inner diameter: 20 mm
✅ Outer diameter: 42 mm
✅ Width: 12 mm
✅ Ball material: silicon nitride ceramic Si3N4
✅ Inner and outer races: full ceramic Si3N4
✅ Cage material: PTFE polytetrafluoroethylene
✅ Seal type: 2RS for added protection
✅ Non conductive and corrosion resistant

💡 Why use a full ceramic 6004-2RS bearing with Si3N4 races and balls?
This bearing type is chosen when performance and durability are needed in harsh conditions.

• Full ceramic construction resists corrosion, chemicals, and moisture

• Si3N4 ceramic allows higher speeds with lower friction than steel

• PTFE cage supports smooth motion with limited lubrication

• Non conductive design works well in electrical and sensitive equipment

This bearing is a handy choice when you want long service life, stable performance, and smooth operation in demanding or specialized applications.