Pack Of 20 Full Ceramic Si3N4 Ball Bearings 6903-2RS Sealed 17x30x7mm, High Precision Ceramic Bearings With Dual Seals For Reduced Friction, Corrosion Resistance, And Long Life In Industrial And Commercial Applications

Solid 20-Pack Full Ceramic 6903-2RS Bearings 17x30x7mm
✔️ Si3N4 full ceramic bearing, 17x30x7mm, 20 pcs pack

This sealed full ceramic bearing set is built from Si3N4, sized 17x30x7mm, and sold as a 20-pack. It's ideal for high-speed, low-friction service in industrial machinery and precision equipment.

✅ Bore: 17 mm
✅ Outer diameter: 30 mm
✅ Width: 7 mm
✅ Material: Si3N4 ceramic (races and balls); Cage: PTFE
✅ Seal: 2RS (sealed shields)
✅ Pack: 20 bearings

💡 What is a pillow block bearing used for in industrial machinery? A handy, general purpose support for rotating shafts that keeps alignment and reduces wear.

- Used to support rotating shafts in conveyors, automation, and CNC systems
- Ceramic bearings offer low friction and corrosion resistance
- Easy mounting and alignment for high-speed drives
- Lightweight, long-life option for heavy-duty equipment