The 618/4-2Z Bearing 4X9X4 is a precision-engineered miniature deep groove ball bearing, ideal for applications requiring compact dimensions and efficient performance. Manufactured under the SKU 61842Z-ECO, this bearing offers a bore diameter of 4 mm, an outer diameter of 9 mm, and a width of 4 mm. Its design is particularly suited for industries that demand high-speed and low-friction components, ensuring smooth and efficient operation across various industrial applications.
Technical specifications
| Specification | Value |
|---|---|
| Bore diameter (d) | 4 mm |
| Outer diameter (D) | 9 mm |
| Width (B) | 4 mm |
| Basic dynamic load rating (C) | 0.64 kN |
| Basic static load rating (C0) | 0.26 kN |
| Limiting speed | 95,000 rpm |
| Shielding/Sealing | ZZ |
| Material | Chrome steel 100Cr6 |
| Factory lubrication | Grease |
| Precision class | P0 / ABEC-1 |
Technical advantages
The 618/4-2Z bearing is designed to deliver specific performance advantages:
- Supports high rotational speeds up to 95,000 rpm due to its miniature ball geometry.
- Manufactured from heat-treated 100Cr6 chrome steel, ensuring a rolling-contact fatigue life exceeding 107 cycles.
- Equipped with ZZ shielding for enhanced protection against dust and particles.
- Standard CN radial clearance, suitable for assemblies that do not require preload.
- Precision class P0 / ABEC-1, providing adequate accuracy for general-purpose applications.
Typical applications
This bearing is commonly used in various specialized sectors, 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
At Eurobearing.eu, the 618/4-2Z bearing (SKU: 61842Z-ECO) is readily available for prompt shipment. As a specialized B2B supplier, we offer the flexibility to request quotations for bulk quantities. Add this item to your cart or contact us directly to request a quotation for your specific needs.
