MR74 Open Miniature Ball Bearings 4x7x2mm Pack of 10 for Precision Machinery, DIY Projects, Robotics, 3D Printing, Smooth Low Friction Movement, Durable Steel Raceway Bearings

MR74 Open Miniature Bearings 4x7x2mm, Pack of 10
✔️ Pack of 10 MR74 open bearings, 4x7x2 mm, steel raceways

These MR74 open miniature ball bearings are tiny yet precise, sized 4x7x2 mm, and sold in a 10-pack for multiple builds. They’re commonly used in precision robotics, 3D printers, micro-machinery, and DIY projects where smooth, low-friction movement matters.

✅ Bore 4 mm, outer diameter 7 mm, width 2 mm
✅ Open design; no shielding for easy lubrication
✅ Steel raceways ensure durability and long life
✅ Pack of 10 for multiple builds

💡 What is a 4x7x2 mm open miniature bearing used for?

These tiny bearings are handy in compact setups where precise, easy-to-maintain motion is key. - handy for hobby robotics and micro-3D printer axes - ideal for compact linear motion and small assemblies - easy to lubricate and inspect due to open design ✝️