626-Z
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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626-Z Bearing Product Overview & Core Advantages
The 626-Z is a metric single row deep groove ball bearing designed for high performance in compact spaces. Engineered with shielded construction on both sides, it offers reliable protection against contamination while retaining lubricant, making it suitable for applications demanding high rotational speeds and consistent operation. Its optimized internal geometry and P6 tolerance class ensure smooth running and precise positioning, providing an excellent balance of radial load capacity and durability for demanding industrial environments.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 626 | Standard bearing series designation, indicating a metric, single row deep groove ball bearing with a 6 mm bore, 19 mm OD, and 6 mm width. |
| -Z | Denotes a shielded bearing. The suffix "-Z" indicates a single shield on one side. For two shields (as implied by the specification data), the common designation is "-2Z". This shield protects against large contaminants while retaining the factory-applied grease lubrication. |
626-Z Bearing Structural Features & Performance Benefits
- High-Speed Capability: The combination of a stainless steel cage, precision-ground chrome steel components, and optimized internal design enables a high limiting speed of 50,000 rpm, making it an ideal high-speed bearing.
- Robust Load Handling: The deep groove raceway and high-quality materials provide a substantial radial dynamic load rating of 526 lbf, allowing it to handle significant radial loads effectively.
- Sealed and Lubricated for Life: The shielded design, combined with factory-preloaded grease lubrication, creates a sealed unit that is protected from contamination and is typically maintenance-free for the life of the bearing in many applications.
- Precision and Stability: Manufactured to a P6 tolerance class with a standard CN radial internal clearance, this bearing ensures high running accuracy, low vibration, and consistent performance in precision assemblies.
626-Z Bearing Typical Application Areas
This versatile miniature ball bearing is commonly specified in:
- Small Electric Motors: Used in fans, blowers, and small power tools where high speed and reliability are critical.
- Precision Instruments and Medical Devices: Ideal for spindles, encoders, and small mechanisms requiring smooth, low-noise operation.
- Office Automation Equipment: Found in printers, scanners, and copiers for paper feed rollers and drive mechanisms.
- Robotics and Automation: Used in joint assemblies, small gearboxes, and guided motion systems.