The SKF 628/4-2Z Bearing 4X9X3,5 is a miniature deep groove ball bearing designed for high precision applications in various industrial environments. Manufactured by SKF, a recognized leader in bearing technology, this component features a compact design with a bore diameter of 4 mm, an outer diameter of 9 mm, and a width of 3.5 mm. Its small dimensions make it particularly suitable for applications where space is limited, such as in precision instruments and lightweight robotic assemblies.
Technical specifications
| Specification | Value |
|---|---|
| Bore diameter (d) | 4 mm |
| Outer diameter (D) | 9 mm |
| Width (B) | 3.5 mm |
| Weight | 0.8 g |
| Basic dynamic load rating (C) | 0.68 kN |
| Basic static load rating (C0) | 0.21 kN |
| Limiting speed | 100,000 rpm |
| Shielding / Sealing | 2Z (Shielded both sides) |
| Ring material | Chrome steel 100Cr6 |
| Factory lubrication | Lithium grease |
| Precision class | P0 / ABEC-1 |
| Internal clearance | CN (Standard) |
Technical advantages
The SKF 628/4-2Z Bearing offers several technical advantages that enhance its performance in demanding applications:
- Capable of continuous operation up to 100,000 rpm, suitable for high-speed applications.
- Constructed with heat-treated 100Cr6 chrome steel, ensuring rolling-contact fatigue life of over 107 cycles.
- Standard CN radial clearance, optimal for assemblies without the need for additional preload adjustments.
- 2Z shielding provides reliable protection against dust and light moisture, reducing maintenance requirements.
- Lithium grease lubrication ensures smooth operation and reduces friction for lower energy consumption.
Typical applications
This bearing is ideal for use in a variety of specialized industries and equipment, including:
- Measurement and laboratory instruments such as optical encoders and electronic micrometers.
- Aeromodelling and drone components, including brushless motors and planetary gearboxes.
- Precision robotics, including harmonic drive reducers and cardan joints.
- Medical devices like peristaltic pumps, lung ventilators, and microscopes.
Availability and ordering
Eurobearing.eu is your specialized B2B supplier for the SKF 628/4-2Z Bearing. This item is available for fast delivery, and bulk quantities can be quoted upon request. Add this essential component to your cart today or contact us for a quotation to meet your specific needs.
