The MR74 2Z Bearing 4X7X2,5*, available under SKU MR742Z-ECO, is a micro deep groove ball bearing of significant utility in various industrial applications. With a compact design, it features a bore diameter of 4 mm, an outer diameter of 7 mm, and a width of 2.5 mm, making it ideal for precise and high-speed applications. This bearing is typically employed in environments where space constraints and high operational speeds are crucial, such as in miniature motors and precision instruments.
Technical specifications
| Specification | Value |
| Bore diameter (d) | 4 mm |
| Outer diameter (D) | 7 mm |
| Width (B) | 2.5 mm |
| Shielding / Sealing | ZZ |
| Ring material | Chrome steel 100Cr6 |
| Precision class | P0 / ABEC-1 |
| Internal clearance | CN |
Technical advantages
The MR74 2Z Bearing offers several technical advantages that make it suitable for demanding applications:
- Capable of continuous operation at high speeds due to its miniaturized ball geometry.
- Manufactured with 100Cr6 chrome steel, ensuring a rolling-contact fatigue life exceeding 10^7 cycles.
- Standard CN radial clearance, suitable for assemblies without preload, enhancing ease of integration.
- Equipped with ZZ shielding, providing effective protection against dust and small particle ingress.
- Precision class P0 / ABEC-1, ensuring adequate performance in applications requiring standard accuracy.
Typical applications
The MR74 2Z Bearing is extensively used across a variety of specialized sectors, including:
- Measurement and laboratory instruments, such as optical encoders and electronic micrometers.
- Aeromodelling and drones, particularly in brushless motors and planetary gearboxes.
- Precision robotics, including harmonic drive reducers and cardan joints.
- Medical devices, such as peristaltic pumps and lung ventilators.
Availability and ordering
Eurobearing.eu is your specialized B2B supplier for the MR74 2Z Bearing, SKU MR742Z-ECO. Benefit from fast availability and the option to request a quote for bulk quantities. Add this product to your cart or contact us for a quotation to meet your specific industrial needs.
