The SKF 618/9 bearing, measuring 9x17x4 mm, is a precise miniature deep groove ball bearing designed for applications demanding high-speed performance and compact dimensions. As part of SKF’s renowned product line, this bearing offers reliable functionality in miniature machinery and equipment. With its compact size, it is particularly suitable for devices where space constraints are critical, ensuring efficient handling of radial and axial loads.
Technical specifications
| Specification | Value |
| Bore diameter (d) | 9 mm |
| Outer diameter (D) | 17 mm |
| Width (B) | 4 mm |
| Basic dynamic load rating (C) | 1.28 kN |
| Basic static load rating (C0) | 0.48 kN |
| Limiting speed | 45,000 rpm |
| Cage type | Pressed steel |
| Shielding/Sealing | Open |
| Ring material | Chrome steel 100Cr6 |
| Precision class | P0/ABEC-1 |
Technical advantages
The SKF 618/9’s design incorporates several technical features that enhance its functionality in demanding applications.
- Miniature design allows for continuous operation up to 45,000 rpm, suitable for high-speed applications.
- Constructed with heat-treated 100Cr6 chrome steel, ensuring a rolling-contact fatigue life exceeding 107 cycles.
- Standard CN radial clearance, making it ideal for assemblies without preload requirements.
- Open design facilitates easy inspection and maintenance, beneficial in controlled environments.
- Pressed steel cage ensures robust performance while minimizing weight.
Typical applications
The SKF 618/9 bearing is versatile and finds use in several precise applications across various industries.
- Measurement and laboratory instruments such as optical encoders and electronic micrometers
- Dental equipment including turbines and micromotors
- Aeromodelling and drones, particularly in brushless motors and planetary gearboxes
- Precision robotics, including harmonic drive reducers and cardan joints
- Medical devices like peristaltic pumps and lung ventilators
Availability and ordering
Eurobearing.eu is your specialized B2B supplier for the SKF 618/9 bearing, offering fast availability and competitive pricing. Whether you need a single unit or bulk quantities, you can easily add this product to your cart or request a quotation for larger orders.
