10Pcs U624ZZ U Ball Bearings Double Shielded Carbon Steel For Rail Track Linear Motion Tiny Yet Tough Mini Bearings Built To Ride Rails Great For Pulleys And Guides In Robotics And Conveyors

10-Pack U624ZZ U Ball Bearings for Rails and Guides
✔️ Double-shielded carbon steel, 1.8mm U groove, rail-ready fit

These compact U624ZZ bearings are double-shielded sealed ball bearings made from carbon steel. They ride on rails or tracks and are commonly used in linear motion systems, pulleys, and guides in robotics, conveyors, and light automation projects.

✅ 10 pieces per pack of U624ZZ mini ball bearings
✅ Double-shielded design keeps lubricant in and contaminants out
✅ Carbon steel construction for rugged use and long life
✅ 1.8 mm deep U groove compatible with rail/track guides
✅ Ideal for small pulleys, conveyors, and robotics linear guides
✅ Suitable for light to medium duty linear motion systems

💡 What is a pillow block bearing used for in automation and linear motion setups?

Pillow block bearings support shafts in guide rails and conveyors, keeping alignment and motion smooth.

- handy for compact automation projects with small shafts
- reduces shaft misalignment and wear on rail guides
- sealed design helps retain lubrication and keeps dust out