628/8-2Z
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Part No.
Part No.
628/8-2Z
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.0036 kg
Tolerance class
P6
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
8 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
16 mm
Outside diameter tolerance
-0.007mm to 0
Width
5 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
299 lbf
Radial static load rating
128 lbf
Limiting speed
45 X 1000 rpm
Lubrication
Grease
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 10.57
/ each
In Stock
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628/8-2Z Bearing Product Overview & Core Advantages
The 628/8-2Z is a precision single row deep groove ball bearing designed for high-performance applications requiring reliable operation and compact design. This shielded bearing excels in handling radial loads efficiently while offering protection from contamination. Its construction ensures smooth operation, making it suitable for applications demanding high rotational accuracy and long service life. The bearing is pre-lubricated with grease, providing immediate readiness for installation and operation.
628/8-2Z Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 628 | Standard deep groove ball bearing series |
| 8 | Bore diameter: 8 mm |
| 2Z | Bearing with shielded seals on both sides. This provides effective protection against solid contaminants while minimizing friction torque. |
628/8-2Z Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: Manufactured to P6 tolerance class with a CN radial internal clearance, this bearing ensures precise running accuracy and stable performance under load, contributing to system high rigidity.
- Optimized Load Capacity: The single row deep groove raceway design is optimized to carry significant radial loads, with a dynamic load rating of 299 lbf and a static load rating of 128 lbf.
- Reliable High-Speed Operation: The combination of a stainless steel cage, high-grade chrome steel components, and effective sealing enables a limiting speed of 45,000 rpm, making it a capable high-speed bearing.
- Long-Term, Low-Maintenance Service: The integral shields (2Z) protect the pre-filled grease lubrication from contamination and loss, ensuring long-term, maintenance-free operation within a wide temperature range of -30°C to 120°C.
628/8-2Z Bearing Typical Application Areas
The 628/8-2Z is ideally suited for a variety of compact and high-speed machinery, including:
- Small electric motors and precision instruments
- Office automation equipment (e.g., printers, scanners)
- Medical devices and dental handpieces
- Robotics and small gearboxes
- Computer cooling fans and spindle drives
