The MR105 2Z Bearing 5X10X4* is a precision-engineered miniature deep groove ball bearing designed for high-performance applications. With a bore diameter of 5 mm, an outer diameter of 10 mm, and a width of 4 mm, this bearing is ideal for compact and high-speed machinery. The MR1052Z-ECO variant falls under the category of deep groove ball bearings micro, offering a reliable solution for industries requiring precise rotational movement and reduced friction.
Technical specifications
| Specification | Value |
| Bore diameter (d) | 5 mm |
| Outer diameter (D) | 10 mm |
| Width (B) | 4 mm |
| Basic dynamic load rating (C) | 1.35 kN |
| Basic static load rating (C0) | 0.54 kN |
| Limiting speed | 70,000 rpm |
| Shielding / Sealing | 2Z |
| Ring material | Chrome steel 100Cr6 |
| Precision class | P0 / ABEC-1 |
| Internal clearance | CN |
Technical advantages
The MR105 2Z Bearing 5X10X4* offers several notable technical benefits that make it a preferred choice for precision applications.
- Capable of continuous operation up to 70,000 rpm due to its miniaturized ball geometry.
- Constructed with heat-treated 100Cr6 chrome steel, ensuring rolling-contact fatigue life exceeding 107 cycles.
- Standard CN radial clearance, perfect for assemblies without preload.
- 2Z shielding provides effective protection against dust and small particulates.
- Manufactured to precision class P0 / ABEC-1 for consistent performance in critical applications.
Typical applications
The MR105 2Z Bearing 5X10X4* is widely used across various industries, particularly where compact and precise motion is essential.
- Measurement and laboratory instruments (optical encoders, electronic micrometers).
- Aeromodelling and drones (brushless motors, planetary gearboxes).
- Dental equipment (turbines, contra-angles, micromotors).
- Precision robotics (harmonic drive reducers, cardan joints).
- Medical devices (peristaltic pumps, lung ventilators, microscopes).
Availability and ordering
Eurobearing.eu is your specialized B2B supplier for the MR1052Z-ECO bearing, ensuring fast availability for this product. Request a quote for bulk quantities or add this item to your cart for immediate purchase.

