3.5x7x2.5mm Shielded Ball Bearing Made From 52100 Chrome Steel With Two Metal Shields For Dust Protection Inner Diameter 3.5mm Outer Diameter 7mm Ideal For Precision Machinery RC Models Robotics And Hobby Projects
✔️ 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