The MR137 2Z Bearing is a miniature deep groove ball bearing designed for precision applications. Known for its compact dimensions, this bearing measures 7 mm in bore diameter, 13 mm in outer diameter, and 4 mm in width. As a versatile component, it is commonly used in high-speed applications where space constraints are a consideration. Engineered for efficiency, the MR137 2Z Bearing is a vital component for industries requiring reliable performance in precision machinery.
Technical specifications
| Specification | Value |
|---|---|
| Bore diameter (d) | 7 mm |
| Outer diameter (D) | 13 mm |
| Width (B) | 4 mm |
| Basic dynamic load rating (C) | 1.02 kN |
| Basic static load rating (C0) | 0.39 kN |
| Limiting speed | 60,000 rpm |
| Shielding / Sealing | 2Z (Double shielded) |
| Ring material | Chrome steel 100Cr6 |
| Factory lubrication | Grease |
| Precision class | P0 / ABEC-1 |
Technical advantages
The MR137 2Z Bearing offers several technical benefits that enhance its suitability for demanding applications:
- Operates effectively at speeds up to 60,000 rpm, making it ideal for high-speed machinery.
- Constructed from heat-treated 100Cr6 chrome steel, ensuring a rolling-contact fatigue life exceeding 107 cycles.
- Double shielded (2Z) for protection against contaminants such as dust and debris.
- Standard precision class P0 / ABEC-1 for general-purpose applications.
- Lubricated with grease for reduced maintenance and improved longevity in continuous operations.
Typical applications
The MR137 2Z Bearing is widely used across various industries, providing reliable performance in specialized equipment:
- Measurement and laboratory instruments like optical encoders and electronic micrometers.
- Aeromodelling and drones, including brushless motors and planetary gearboxes.
- Dental equipment such as turbines, contra-angles, and micromotors.
- Precision robotics, including harmonic drive reducers and cardan joints.
Availability and ordering
Eurobearing.eu is your dedicated B2B supplier for mechanical components, offering fast availability of the MR1372Z-ECO bearing. For bulk orders, request a quotation to benefit from competitive pricing. Add the MR137 2Z Bearing to your cart or contact us for further inquiries.

