SMR52ZZ Deep Groove Ball Bearings 4 Pack, 2 X 5 X 2.5mm, 440C Stainless Steel, Double Shielded, ABEC 5, Low Friction, Ultra Smooth, Rock Solid, Built To Last Precision Bearings for Micro Motors, RC, Robotics

4-Pack SMR52ZZ Deep Groove Bearings for Micro Motors
✔️ 4 x 2x5x2.5 mm double shield, 440C steel, ABEC5, low friction

These compact deep groove ball bearings are designed for micro motors, robotics, RC gear, and other precise small machinery. With 440C stainless steel and a double shield, they seal in lubricant while keeping dust and moisture out for longer service life in tight spaces.

✅ Pack size: 4 bearings per set
✅ Size: inner diameter 2 mm, outer diameter 5 mm, width 2.5 mm
✅ Material: 440C stainless steel, cage 440 stainless steel, ABEC 5
✅ Protection: double shield seals to retain lubricant and resist dust
✅ Noise/fit: low-friction operation with ZV3 rated quiet performance

These bearings are handy for hobby robotics and compact motion projects, delivering smooth rotation with minimal noise in constrained spaces. Their durability and shielded design make them a solid choice for micro motors, RC devices, and precision gadgets.

💡 What is a small shielded deep groove bearing used for in hobby robotics and micro motors?

Handy in compact projects for smooth motion and longevity.

- Common uses in small automated systems such as RC toys and hobby robotics - How ABEC5 rating and 440C steel boost durability and performance - Shielded design helps in dusty or humid environments with less maintenance - Tips to select shields versus sealed variants for your setup