The SKF 619/4 2Z bearing is a miniature deep groove ball bearing designed for precision applications. Manufactured by SKF, this bearing features compact dimensions of 4x11x4 mm, making it suitable for space-constrained environments. It is commonly employed in industries requiring high accuracy and stable performance, such as precision instrumentation and miniature machinery. The 619/4 2Z model is equipped with dual metal shields (ZZ) to provide protection against contamination, ensuring consistent functionality in demanding conditions.
Technical specifications
| Specification | Value |
| Bore diameter (d) | 4 mm |
| Outer diameter (D) | 11 mm |
| Width (B) | 4 mm |
| Weight | 2 g |
| Basic dynamic load rating (C) | 0.64 kN |
| Basic static load rating (C0) | 0.19 kN |
| Limiting speed | 70,000 rpm |
| Shielding | ZZ (Double Metal Shield) |
| Ring material | Chrome steel 100Cr6 |
| Precision class | P0 / ABEC-1 |
Technical advantages
The SKF 619/4 2Z bearing offers several technical advantages suited for specialized applications:
- Compact design with a bore diameter of just 4 mm, ideal for miniature assemblies.
- Operates efficiently at high speeds up to 70,000 rpm, minimizing frictional losses.
- Constructed from heat-treated 100Cr6 chrome steel, ensuring a rolling-contact fatigue life exceeding 107 cycles.
- Standard P0 precision class suitable for applications with moderate precision demands.
- Dual metal shields (ZZ) provide effective protection against dust and debris, enhancing operational reliability.
Typical applications
The SKF 619/4 2Z bearing is specifically engineered for use in a range of precision-driven sectors:
- Measurement and laboratory instruments (optical encoders, electronic micrometers)
- Aeromodelling and drones (brushless motors, planetary gearboxes)
- Dental equipment (turbines, contra-angles, micromotors)
- Precision robotics (harmonic drive reducers, cardan joints)
- Medical devices (peristaltic pumps, lung ventilators, microscopes)
Availability and ordering
Eurobearing.eu is your trusted B2B supplier for specialized mechanical components like the SKF 619/4 2Z bearing. This product is readily available for fast dispatch. For bulk orders or to request a quotation, please visit our website and add the SKU 61942Z-SKF to your cart or contact our sales team for further assistance.
