619/7
618 & 619 Series Thin Section Bearings
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Basic Information
Main Dimensions
Performance
Materials
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619/7 Bearing Product Overview & Core Advantages
The 619/7 is a single row deep groove ball bearing designed for precision applications requiring high reliability and compact design. As a metric series bearing, it excels in handling radial loads efficiently while offering smooth operation. Its open design allows for versatile lubrication options and facilitates high-speed performance. Manufactured to P6 tolerance class, this bearing ensures precise running accuracy, making it ideal for applications demanding minimal vibration and noise.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 619 | Series designation for extra small, deep groove ball bearings |
| 7 | Bore diameter: 7 mm |
| (No suffix) | Open design, no seals or shields |
619/7 Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P6 tolerance class with tight dimensional control (bore and OD tolerance: -0.007mm to 0), ensuring high running accuracy and consistent performance in precision assemblies.
High-Speed Capability: Features a stainless steel cage that provides excellent guidance at high rotational speeds, supporting a limiting speed of 56,000 rpm.
Robust Load Capacity: With a radial dynamic load rating of 238 lbf and radial static load rating of 84 lbf, this bearing delivers reliable performance under substantial radial loads.
Premium Material Construction: Both rings and balls are made from chrome steel for superior hardness and wear resistance, while the stainless steel cage offers corrosion resistance and durability.
Standard Internal Clearance: CN radial internal clearance provides optimal fit for most general applications across the operating temperature range of -30°C to 120°C.
619/7 Bearing Typical Application Areas
- Precision instruments and measuring devices
- Small electric motors and miniature gearboxes
- Medical equipment components and dental handpieces
- Office automation equipment and precision mechanisms
- Robotics and miniature automation systems
- Optical instruments and positioning systems
