628/6-2Z
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Basic Information
Main Dimensions
Performance
Materials
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628/6-2Z Bearing Product Overview & Core Advantages
The 628/6-2Z is a metric single row deep groove ball bearing designed for high-precision radial load applications. Its compact design, featuring a 6 mm bore and 13 mm outside diameter, makes it ideal for space-constrained assemblies. Manufactured to a P6 tolerance class, this bearing offers superior running accuracy and is pre-lubricated with grease for immediate use, ensuring high reliability and consistent performance in demanding operational environments.
628/6-2Z Bearing Model Code Explained, Specifications & Naming Convention
- 628/6: Basic bearing series and bore diameter code (6 mm).
- -2Z: Signifies that the bearing is equipped with non-contact shields on both sides. This provides effective protection against contamination while allowing for high-speed operation with minimal friction increase.
628/6-2Z Bearing Structural Features & Performance Benefits
High Precision & Rigidity: Built to a P6 tolerance class with tight dimensional tolerances on the bore, outside diameter, and width, ensuring precise shaft positioning and smooth operation.
Robust Load Capacity: The single row deep groove construction is optimized to handle significant radial dynamic loads (198 lbf) and moderate radial static loads, providing reliable support for rotating shafts.
Optimized for Speed: The combination of a stainless steel cage, non-contact shields (2Z), and pre-applied grease lubrication enables a high limiting speed of 53,000 rpm, making it suitable for high-speed applications.
Low Maintenance & Long Service Life: The sealed design with shields and factory-applied grease minimizes lubricant leakage and excludes contaminants, resulting in a maintenance-free bearing with an extended operational lifespan within its specified temperature range (-30°C to 120°C).
628/6-2Z Bearing Typical Application Areas
This bearing is widely used in applications requiring compact size, high speed, and precision, including:
- Small Electric Motors and Gearboxes
- Precision Instruments and Optical Encoders
- Office Automation Equipment (e.g., Printers, Scanners)
- Medical Devices and Dental Handpieces
- Computer Cooling Fans and Spindles
