The 638/4-2Z Bearing, with dimensions of 4x9x4 mm, is a miniature deep groove ball bearing available under SKU: 63842Z-ECO. This component, categorized under deep groove ball bearings MICRO, is designed for high-precision applications where space constraints necessitate compact solutions. With its small size and efficient design, it is ideally suited for applications requiring minimal friction and high rotational speeds, such as in measurement instruments and micro-motors.
Technical specifications
| Specification | Value |
|---|---|
| Bore diameter (d) | 4 mm |
| Outer diameter (D) | 9 mm |
| Width (B) | 4 mm |
| Basic dynamic load rating (C) | 0.59 kN |
| Basic static load rating (C0) | 0.21 kN |
| Limiting speed | 75,000 rpm |
| Shielding / Sealing | 2Z |
| Ring material | Chrome steel 100Cr6 |
| Factory lubrication | Grease |
| Precision class | P0 / ABEC-1 |
Technical advantages
The 638/4-2Z Bearing is engineered for performance in demanding environments, offering several technical advantages:
- Capable of continuous operation up to 75,000 rpm, suitable for high-speed applications.
- Construction using heat-treated 100Cr6 chrome steel ensures a rolling-contact fatigue life exceeding 107 cycles.
- Standard CN radial clearance allows for efficient assembly without the need for preload adjustments.
- 2Z shielding provides effective protection against dust and particle ingress, enhancing reliability.
- Pre-lubricated with grease for optimal performance and reduced maintenance requirements.
Typical applications
The versatile 638/4-2Z Bearing is used across various industries, including:
- Measurement and laboratory instruments, such as optical encoders and electronic micrometers.
- Aeromodelling and drones, supporting components like brushless motors and planetary gearboxes.
- Dental equipment, including turbines, contra-angles, and micromotors.
- Precision robotics, utilized in harmonic drive reducers and cardan joints.
- Medical devices, found in peristaltic pumps, lung ventilators, and microscopes.
Availability and ordering
Eurobearing.eu is your specialized B2B supplier for the 63842Z-ECO bearing, ensuring fast availability for your business needs. For bulk orders or specific requirements, request a quote to receive tailored pricing. Ready to enhance your equipment? Add to cart or request a quotation today.
