The MR148-2Z MICROBearing 8X14X4* – MTB is a precision miniature deep groove ball bearing specifically designed for applications requiring compact dimensions and high performance. With a bore diameter of 8 mm, an outer diameter of 14 mm, and a width of 4 mm, this bearing is an ideal choice for equipment where space constraints are critical. Its design and build are suited for various industrial purposes, including precision instruments and small electric motors, offering efficient rotational performance and stability.
Technical specifications
| Specification | Value |
|---|---|
| Bore diameter (d) | 8 mm |
| Outer diameter (D) | 14 mm |
| Width (B) | 4 mm |
| Basic dynamic load rating (C) | 1.01 kN |
| Basic static load rating (C0) | 0.41 kN |
| Limiting speed | 47,000 rpm |
| Shielding | ZZ |
| Ring material | Chrome steel 100Cr6 |
| Precision class | P0 / ABEC-1 |
Technical advantages
The MR148-2Z MICROBearing offers numerous technical benefits that optimize its performance in demanding environments:
- High rotational speeds up to 47,000 rpm due to optimized ball and raceway geometry.
- Constructed from 100Cr6 chrome steel, ensuring a rolling-contact fatigue life exceeding 107 cycles.
- Standard CN internal clearance, perfect for applications requiring no preload.
- ZZ shielding provides robust protection against dust and contaminants.
- Precision class P0 / ABEC-1 ensures consistent dimensional accuracy and stability in high-speed applications.
Typical applications
This miniature deep groove ball bearing is perfectly suited for a range of specialized industries and applications, including:
- 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 offers the MR148-2Z-ECO with fast availability for your industrial needs. As a specialized B2B supplier, we ensure prompt service and the option to request a quote for bulk quantities. Add to cart or request a quotation today to secure your order.

