Full Ceramic Zirconia Ball Bearing One Quarter Inch Inner Diameter One Half Inch Outer Diameter Three Sixteenths Inch Width Non Magnetic Low Friction High Purity R188 Size For Industrial Machinery And Precision Equipment

Premium 1/4 x 1/2 x 3/16 in ceramic bearing - single unit
✔️ ID 0.25in, OD 0.5in, width 0.1875in (ceramic)

This is a full ceramic ball bearing built with zirconia (ZrO2) balls and PTFE cage, plus PTFE covers. It's a handy choice for precision machinery, robotics, and linear slide unit applications where low friction, light weight, and corrosion resistance matter.

✅ Bore/ID: 6.35 mm (0.25 in), OD: 12.70 mm (0.50 in), width: 4.76 mm (3/16 in)
✅ Balls: Zirconia ceramic for low friction and high wear resistance
✅ Cage: PTFE for smooth, clean operation
✅ Seals: PTFE covers provide dust protection; sealed ball bearing style
✅ Pack: 1 bearing per unit

💡 What is a ceramic bearing used for in precise machines? This handy guide covers the basics. - Used in high-precision equipment where low friction is critical - Great for dry environments and where lubrication is limited - Excellent durability and corrosion resistance in challenging settings