1.55x4x2.5mm Shielded Ball Bearing Miniature Deep Groove With Double Metal Shields For Dust Protection And Smooth Precise Rotation In Small Machinery And Hobby Projects

Compact 1.55 x 4 x 2.5 mm Shielded Mini Ball Bearing
✔️ ID 1.55mm, OD 4mm, width 2.5mm, shielded ZZ, single unit

This compact shielded ball bearing supports precise, low-friction rotation in tight spaces. It’s designed for micro assemblies in hobby robotics, model machines, and small linear slide units where dust protection and compact size matter.

✅ Inner diameter 1.55 mm
✅ Outer diameter 4.0 mm
✅ Width 2.5 mm
✅ Shield ZZ (double metal shields)
✅ Dynamic load rating Cr 100 N
✅ Static load rating Cor 30 N
✅ Max speed 130,000 RPM (grease lubrication)

💡 What is a small shielded ball bearing used for in micro motion assemblies?

They’re handy for tiny shafts in micro projects and precision gear where space is tight.

- tiny shaft support in micro projects - dust-protected life extension with ZZ shields - easy mounting and replacement in compact machines - reduces friction and wear in small, fast-moving parts