The 618/9 Bearing, SKU: 6189-ECO, is a miniature deep groove ball bearing designed for precision applications. With dimensions of 9 mm bore diameter, 17 mm outer diameter, and 4 mm width, this bearing is an excellent choice for compact mechanical assemblies. It is commonly utilized in industries requiring high precision and low noise, such as aerospace, robotics, and medical devices. As a versatile component, the 618/9 Bearing is engineered to deliver consistent performance in various demanding environments.
Technical specifications
| Specification | Value |
| Bore diameter (d) | 9 mm |
| Outer diameter (D) | 17 mm |
| Width (B) | 4 mm |
| Basic dynamic load rating (C) | 2.34 kN |
| Basic static load rating (C0) | 0.95 kN |
| Limiting speed | 45,000 rpm |
| Reference speed | 40,000 rpm |
| Cage type | Pressed steel |
| Shielding/Sealing | Open |
| Ring material | Chrome steel 100Cr6 |
| Precision class | P0 / ABEC-1 |
| Internal clearance | CN |
Technical advantages
The 618/9 Bearing offers several technical benefits that make it suitable for high-precision applications:
- Capable of continuous operation up to 45,000 rpm, ideal for high-speed machinery.
- Manufactured from heat-treated 100Cr6 chrome steel, ensuring a rolling-contact fatigue life exceeding 10^7 cycles.
- Features a standard CN radial clearance, making it perfect for assemblies without preload.
- Lightweight design allows for reduced inertia in dynamic applications.
- Open configuration provides flexibility for custom lubrication solutions depending on specific operational needs.
Typical applications
The 618/9 Bearing is an essential component across various industries due to its compact size and efficiency:
- Measurement and laboratory instruments such as optical encoders and electronic micrometers.
- Aeromodelling and drones, including brushless motors and planetary gearboxes.
- Dental equipment like turbines, contra-angles, and micromotors.
- Precision robotics, including harmonic drive reducers and cardan joints.
- Medical devices such as peristaltic pumps, lung ventilators, and microscopes.
Availability and ordering
Eurobearing.eu is your specialized B2B supplier for the 6189-ECO bearing, offering fast availability and the ability to request a quote for bulk quantities. Click “add to cart” or “request quotation” to secure your supply of this essential component today.
