10 Pack 7x13x4 Stainless Steel Shielded Miniature Ball Bearings Pre Lubricated With Grease ZZ Shielded 7x13x4 Precision Bearings For Small Machinery And DIY Projects

7x13x4 Stainless Shielded Bearings - 10-Pack for DIY ✔️ 7x13x4 stainless, ZZ shields, grease-packed, 10 bearings

These compact stainless steel ball bearings are designed for tight spaces in small machinery. They are commonly used in RC cars, drones, hobby robotics, and precision slides where reliable rotation and dust protection matter.

✅ Inner diameter 7 mm (0.276 in); Outer diameter 13 mm (0.512 in); Width 4 mm (0.157 in)
✅ Material: stainless steel with double shields (ZZ) for dust protection
✅ Lubrication: pre-lubricated with grease for smooth operation
✅ Dynamic load rating Cr: 820 N; Static load rating Cor: 380 N; Maximum speed: ~47,000 RPM
✅ Pack size: 10 bearings; common equivalents: WML7013ZZ, MR137ZZS, L-1370ZZ

💡 What is a shielded stainless steel ball bearing used for in compact machinery? These handy bearings are built for small, precise rotations in tight spaces. - Ideal for hobby robotics, RC gear, and compact automation - Shields keep out dust and retain grease for longer life - Stainless steel resists corrosion in humid or wash-down setups