Shielded Miniature Ball Bearing 8 x 13 x 4 ZZ Pre Lubricated Chrome Steel 52100 Durable Dust Resistant For Smooth Operation In Hobby Model Making And Precision Machinery And CNC Systems

This compact shielded ball bearing is ideal for small machines, precision gear systems, and hobby projects like micro robotics or RC gear. It ships pre-lubricated and features double metal shields to keep out dust and debris, so it’s ready to roll right away.

✅ Bore (inner diameter): 8 mm
✅ Outer diameter: 13 mm
✅ Width: 4 mm
✅ Shield type: dual metal shields ZZ for dust protection
✅ Material: chrome steel 52100
✅ Lubrication: pre-lubricated with grease
✅ Quantity: 1 bearing

💡 What is a small shielded 8x13x4 ball bearing best used for in compact projects?
This handy bearing helps reduce friction in tight spaces and protects against dust in everyday gear.
- Handy for micro motors, drones, RC cars, and tiny linear-motion setups.
- Fits 8x13x4 mm bore with ZZ shields for dust resistance.
- Pre-lubricated grease enables immediate operation without extra setup.
- Chrome steel 52100 offers solid durability for radial loads.