Full Ceramic Ball Bearing 12mm Bore 28mm Outer Diameter 8mm Width ZrO2 Ceramic Balls PTFE Cage Ceramic Inner And Outer Rings For Superior Durability Low Friction High Precision In Industrial Equipment
UPC: 00193019043141
Type: Full Ceramic Ball Bearing
Balls: ZrO2 Ceramic
Cage: PTFE
Inner/outer races: ZrO2 Ceramic
✔️ 12x28x8 mm full ceramic bearing, single pack with ZrO₂ balls
This full ceramic bearing uses zirconia ceramic balls and ceramic races with a PTFE cage, delivering low friction, corrosion resistance, and long life in dry, high-temperature applications. It's a single bearing sized at 12 mm ID, 28 mm OD, 8 mm width, ideal for precision machines, robotics, and linear slide units.
✅ Inner diameter: 12 mm
✅ Outer diameter: 28 mm
✅ Width: 8 mm
✅ Material: ZrO₂ ceramic balls; ceramic races; PTFE cage
✅ Temperature rating: up to 180 C (356 F)
✅ Quantity: 1 bearing
💡 What is a common use case for ceramic bearings in high-precision gear and automation setups? Ceramic bearings shine in dry, high-temperature environments where lubrication is minimal. - Improve wear resistance and longevity - Reduce maintenance due to corrosion resistance - Lower friction for smoother starts and quiet operation - Ideal for robotics, CNC, and linear motion systems
I bought these bearings to replace the bearings in aluminum bicycle hubs. I am building a supermileage vehicle and decided to try these bearings to minimize the rolling resistance. They far exceeded my expectations and were a fantastic upgrade from the steel bearings they replaced. An extra benefit that I found when using the ceramic bearings was the minimal thermal expansion. To remove them from the aluminum bicycle hub all I did was hit them with a hair drier and they nearly fell out.