RoulementShielded 5mm ,5mm , fabriqué en Chrome Steel 52100, Chrome Steel deux Shields métalliques Shields la protection contre la poussière. Inner Diameter 5mm .Outer Diameter 7mm pour les machines de précision, RC , la robotique et les projets de loisirs.

3.5x7x2.5mm Shielded Ball Bearing for Micro Gear
✔️ Chrome steel 52100, shielded ZZ, 3.5/7/2.5mm, single unit

This tiny shielded ball bearing measures 3.5 mm ID, 7 mm OD, and 2.5 mm wide. Made from chrome steel 52100 for durability, it’s a reliable choice for micro gearboxes, RC models, robotics joints, and other compact applications. The double metal shields protect against dust and contamination while preserving lubrication in tight spaces.

✅ Inner diameter: 3.5 mm
✅ Outer diameter: 7.0 mm
✅ Width: 2.5 mm
✅ Material: chrome steel (52100 alloy)
✅ Shield: double metal shields (ZZ) for dust protection
✅ Type: deep groove ball bearing
✅ Pack: 1 bearing

💡 What is a shielded ball bearing typically used for in small mechanical assemblies?

Shielded bearings protect moving parts from dust and keep lubrication in, which is handy for tight spaces and low-maintenance setups.

- compact gearboxes and RC models - dust protection and lubrication retention - smooth rotation in tight spaces - long service life in challenging environments