The SKF 628/9-2Z bearing is a miniature deep groove ball bearing, designed with precision to fit a multitude of industrial applications. This bearing features dimensions of 9 mm bore diameter, 17 mm outer diameter, and a width of 5 mm, making it suitable for compact setups. Manufactured by SKF, a leader in the bearing industry, the 628/9-2Z bearing is ideal for applications requiring reliable rotational performance in limited spaces, such as in small electric motors or precision instruments.
Technical specifications
| Specification | Value |
| Bore diameter (d) | 9 mm |
| Outer diameter (D) | 17 mm |
| Width (B) | 5 mm |
| Basic dynamic load rating (C) | 1.28 kN |
| Basic static load rating (C0) | 0.5 kN |
| Limiting speed | 45,000 rpm |
| Shielding | ZZ |
| Ring material | Chrome steel 100Cr6 |
| Factory lubrication | Grease |
| Precision class | P0 |
Technical advantages
The SKF 628/9-2Z bearing provides several technical advantages, making it a preferred choice for demanding applications:
- Miniaturized design allows continuous operation up to 45,000 rpm with minimal radial space.
- Constructed from heat-treated 100Cr6 chrome steel, ensuring a rolling-contact fatigue life exceeding 107 cycles.
- Standard CN radial clearance, suitable for applications that do not require preload.
- ZZ shielding offers efficient protection against contaminants, prolonging operational integrity.
- Pre-lubricated with grease, reducing initial setup time and maintenance.
Typical applications
This bearing is versatile, finding utility across various specialized industries and equipment:
- Measurement and laboratory instruments, such as optical encoders and electronic micrometers.
- Aeromodelling and drones, including brushless motors and planetary gearboxes.
- Dental equipment like turbines and contra-angles.
- Precision robotics, including harmonic drive reducers and cardan joints.
- Medical devices, such as peristaltic pumps and lung ventilators.
Availability and ordering
Available now at Eurobearing.eu, your specialized B2B supplier of industrial components. The SKF 628/9-2Z bearing is in stock for immediate dispatch. For bulk orders, request a quote to benefit from competitive pricing. Add this essential component to your cart today or contact us for further assistance.
