The SKF 618/4 bearing is a miniature deep groove ball bearing with dimensions of 4x9x2.5 mm. Designed for precision applications, its compact form factor and reliable performance make it ideal for use in various high-precision industrial sectors. This bearing is part of SKF’s renowned line of deep groove ball bearings, known for their ability to accommodate radial and axial loads in both directions, making them versatile across different mechanical applications.
Technical specifications
| Specification | Value |
|---|---|
| Bore diameter (d) | 4 mm |
| Outer diameter (D) | 9 mm |
| Width (B) | 2.5 mm |
| Basic dynamic load rating (C) | 0.325 kN |
| Basic static load rating (C0) | 0.125 kN |
| Limiting speed | 70,000 rpm |
| Cage type | Pressed steel |
| Shielding/Sealing | Open |
| Ring material | Chrome steel 100Cr6 |
| Precision class | P0 / ABEC-1 |
| Internal clearance | CN |
Technical advantages
The SKF 618/4 bearing offers several technical advantages that enhance its functionality in precision machinery:
- Capable of continuous operation at speeds up to 70,000 rpm, essential for high-speed applications.
- Manufactured from heat-treated 100Cr6 chrome steel, ensuring a rolling-contact fatigue life exceeding 10^7 cycles.
- Standard CN radial clearance, optimal for assemblies without preload requirements.
- Compact dimensions of 4x9x2.5 mm, suited for space-constrained installations.
- Open design allows for easy lubrication and maintenance in controlled environments.
Typical applications
This miniature deep groove ball bearing is suitable for a variety of precise industrial applications, including:
- Measurement and laboratory instruments (e.g., optical encoders, electronic micrometers)
- Aeromodelling and drones (e.g., brushless motors, planetary gearboxes)
- Dental equipment (e.g., turbines, contra-angles, micromotors)
- Precision robotics (e.g., harmonic drive reducers, cardan joints)
- Medical devices (e.g., peristaltic pumps, lung ventilators, microscopes)
Availability and ordering
Eurobearing.eu is your specialized B2B supplier for the SKF 618/4 bearing, ensuring fast availability. For bulk purchases, you can request a quote directly through our platform. Ready to enhance your machinery with SKF precision? Add to cart or request a quotation today.
