W 619/7
W Series Stainless Steel Miniature Bearings
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W 619/7 Bearing Product Overview & Core Advantages
The W 619/7 is a metric single row deep groove ball bearing designed for precision applications requiring high reliability. Constructed entirely from stainless steel, this open-type bearing offers excellent corrosion resistance and is capable of handling primarily radial loads. Its compact design, with a 5 mm width, makes it ideal for space-constrained assemblies. Manufactured to P0 tolerance class with a standard CN radial internal clearance, it ensures consistent performance and smooth operation, making it a robust and durable choice for various industrial applications.
W 619/7 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| W | Designates a series of stainless steel deep groove ball bearings. |
| 619 | Indicates the bearing series, defining the cross-sectional dimensions and performance characteristics. |
| 7 | Specifies the bore diameter of 7 mm. |
| (No Suffix) | The absence of additional suffixes confirms an open design (no seals or shields) and no pre-lubrication. |
W 619/7 Bearing Structural Features & Performance Benefits
- All-Stainless Steel Construction: The rings, balls, and cage are made from stainless steel, providing superior corrosion resistance and suitability for harsh environments, including washdown applications.
- Deep Groove Raceway: The geometry of the deep groove raceway enables the bearing to handle not only radial loads but also moderate axial loads in both directions, offering versatile load-carrying capacity.
- High-Speed Capability: With a limiting speed of 56,000 rpm, this bearing is engineered for high-speed operation, benefiting from a low-friction, open design and precision manufacturing.
- Precision Tolerance: Manufactured to P0 tolerance class and standard CN radial internal clearance, it guarantees smooth and quiet running, which is critical for precision instruments and machinery.
- Wide Temperature Range: Operates effectively within a temperature range of -30°C to 120°C, ensuring performance stability across various operating conditions.
W 619/7 Bearing Typical Application Areas
The W 619/7 is ideally suited for applications demanding compact size, corrosion resistance, and high-speed performance. Key industries and equipment include:
- Precision Instruments and optical devices
- Small Electric Motors and miniature gearboxes
- Medical and dental equipment
- Food and beverage processing machinery
- Robotics and automation systems
