10 Pack 61903ZZ Shielded Ball Bearings 17mm x 30mm x 7mm With Double Metal Shields ZZ Chrome Steel Construction For High Durability And Smooth Low Friction Rotation Ideal For Hobby Robotics RC And Precision Machinery

This set features 61903ZZ shielded deep groove ball bearings with a 17 mm bore, 30 mm outer diameter, and 7 mm width, sold as a pack of 10. It's a sealed ball bearing assembly ideal for robotics, conveyors, and DIY projects requiring smooth rotation and dust protection.

✅ Inner diameter: 17 mm (0.669 in)
✅ Outer diameter: 30 mm (1.181 in)
✅ Width: 7 mm (0.276 in)
✅ Shielding: double metal shields (ZZ) for dust protection
✅ Material: chrome steel for durability
✅ Lubrication: pre-lubricated with grease for smooth operation
✅ Pack size: 10 bearings

💡 What is a pillow block bearing used for? This handy piece helps support rotating shafts and keeps them aligned in machinery.
- Handy for conveyors and robotics
- Improves shaft stability and reduces wear
- Works with standard mounting frames