12x28x8 Angular Contact Ceramic Bearing With Si3N4 Balls, Stainless Steel, Single Row, ABEC-5 Precision, Premium Quality Bearing For High Speed Machinery, S7001-2RS Style, Ideal For Precision Machinery, Robotics And CNC High Speed Spindles

This premium ABEC-5 single-row angular contact bearing uses ceramic Si3N4 balls in a stainless steel shell, designed for precise, smooth rotation in tight spaces like electric motors, CNCs, 3D printers, and robotics.

✅ Bore 12 mm (0.472 in), OD 28 mm (1.102 in), Width 8 mm (0.315 in)
✅ ABEC-5 precision class for high-speed, low-friction operation
✅ Ceramic Si3N4 balls, stainless steel cage, sealed ball bearing 2RS design
✅ 1 bearing per pack

💡 What is a ceramic angular contact bearing used for in precision machinery? This type of bearing is handy for high-speed, low-friction motion in compact systems. - used in compact electric motors for smooth rotation and precise shaft alignment - ideal for CNC spindles and 3D printers needing tight tolerances and long life - ceramic balls reduce heat and wear in aggressive operating conditions