MR105 Open Bearing ID 5mm OD 10mm Width 4mm

MR105 Open Deep Groove Ball Bearing 5x10x4mm
✔️ Single row radial style with open design

This is a single MR105 miniature deep groove ball bearing (pack of 1) with an open design for low rolling resistance and easy lubrication access. It’s commonly used in small motors, micro gear drives, RC applications, robotics, and other compact motion systems.

✅ Inner diameter: 5mm (.197")
✅ Outer diameter: 10mm (.394")
✅ Width: 4mm (.157")
✅ Type: deep groove, single row
✅ Dynamic load rating: 0.5 kN
✅ Static load rating: 0.21 kN
✅ Quantity: 1 bearing

💡 Why do miniature open-style deep groove bearings run so efficiently at small sizes?
The open raceway reduces drag and allows direct lubrication onto the balls.
- Better speed capability in tiny housings
- Less friction compared to sealed versions
- Ideal where airflow or oil bath lubrication is available

If you’re building something tight on space and you need a free-spinning micro bearing, this one keeps things smooth, snag one and keep your setup running light and fast.