The SKF 618/6 Bearing, with dimensions of 6x15x5 mm, is a miniature deep groove ball bearing designed for various industrial applications. As part of the renowned SKF brand, this bearing is engineered for precision and efficiency. Its compact design is particularly well-suited for equipment with limited space, ensuring dependable performance in sectors requiring high-speed rotation and minimal friction. Typical uses include precision instruments and small machinery where space constraints and high performance are critical.
Technical specifications
| Specification | Value |
| Bore diameter (d) | 6 mm |
| Outer diameter (D) | 15 mm |
| Width (B) | 5 mm |
| Basic dynamic load rating (C) | 1.28 kN |
| Basic static load rating (C0) | 0.48 kN |
| Limiting speed | 75,000 rpm |
| Cage type | Pressed steel |
| Shielding / Sealing | Open |
| Ring material | Chrome steel 100Cr6 |
| Precision class | P0 / ABEC-1 |
| Internal clearance | Standard CN |
Technical advantages
The SKF 618/6 Bearing offers several technical advantages that enhance its utility in precision applications:
- Capable of continuous operation at speeds up to 75,000 rpm, suitable for high-performance machinery.
- Constructed from heat-treated 100Cr6 chrome steel, providing a rolling-contact fatigue life exceeding 107 cycles.
- Standard CN radial clearance, making it ideal for assemblies without the need for preload adjustments.
- Open design promotes ease of maintenance and inspection in environments with controlled conditions.
- Precision class P0 / ABEC-1 ensures a balance between cost-efficiency and accuracy for various applications.
Typical applications
The versatility and design of the SKF 618/6 Bearing make it suitable for a wide range of industries and applications, including:
- Measurement and laboratory instruments, such as optical encoders and electronic micrometers.
- Aeromodelling and drones, particularly in brushless motors and planetary gearboxes.
- Dental equipment, including turbines, contra-angles, and micromotors.
- Precision robotics, such as harmonic drive reducers and cardan joints.
- Medical devices, including peristaltic pumps, lung ventilators, and microscopes.
Availability and ordering
Eurobearing.eu provides swift access to the SKF 618/6 Bearing, with fast availability for code 6186-SKF. Businesses can easily request a quote for bulk quantities to meet their operational needs. Add to cart or request a quotation today to secure this essential component for your machinery.

