Open Ceramic Ball Bearing Si3N4 17x30x7mm With Premium ABEC5 Quality Silicon Nitride Balls Stainless Steel Cage Radial Deep Groove Design For High Precision Machinery And Low Friction For Smooth High Speed Performance And Durable In Harsh Environments

These are high-precision ceramic bearings built for fast, smooth rotation. With Si3N4 ceramic balls and a stainless steel cage, they excel in applications like precision motors, 3D printers, robotics, and other equipment requiring reliable speed and longevity.

✅ Bore 17 mm (0.67 in) OD 30 mm (1.18 in) Width 7 mm (0.28 in)
✅ Material: stainless steel outer ring and cage; Si3N4 ceramic balls
✅ ABEC-5 precision for high-speed operation
✅ Open radial-deep groove design for cooling and easy inspection
✅ Pack: 1 bearing