W 628/6 R-2Z
W Series Stainless Steel Flanged Miniature Bearings
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Part No.
Part No.
W 628/6 R-2Z
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.0029 kg
Tolerance class
P0
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
6 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
13 mm
Outside diameter tolerance
-0.008mm to 0
Width
5 mm
Width tolerance
-0.12mm to 0
Outer Ring Dimensions
Flange outer diameter
15 mm
Flange thickness
1.1 mm
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
139 lbf
Radial static load rating
50 lbf
Limiting speed
53 X 1000 rpm
Lubrication
Grease
Radial internal clearance
CN
Materials
Ring material
Stainless Steel
Ball material
Stainless Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 2.12
/ each
In Stock
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W 628/6 R-2Z Bearing Product Overview & Core Advantages
The W 628/6 R-2Z is a single row deep groove ball bearing designed for exceptional performance in compact spaces. Engineered with stainless steel rings, balls, and cage, it offers superior corrosion resistance. Its shielded (2Z) design and pre-applied grease lubrication provide robust contamination protection and long-term, maintenance-free operation. This bearing is optimized for handling radial loads and is capable of high-speed operation up to 53,000 rpm, making it a precision bearing solution for demanding applications where reliability and compact bearing dimensions are critical.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| W 628/6 | Indicates the bearing series and size. A single row deep groove ball bearing with a 6 mm bore diameter. |
| R | Denotes a flanged outer ring, which facilitates precise axial location and simplifies housing design. |
| 2Z | Signifies non-contact shields on both sides. This provides effective protection against contamination while minimizing friction, contributing to the high limiting speed. |
W 628/6 R-2Z Bearing Structural Features & Performance Benefits
- Compact & Robust Flange Design: The integrated flange (15 mm outer diameter) ensures easy and secure mounting, providing excellent axial location and enhancing system rigidity without requiring complex housing shoulders.
- High-Speed Capability: The combination of a stainless steel cage, low-friction shields, and optimized grease lubrication allows the bearing to achieve a high limiting speed of 53,000 rpm, making it suitable for high-speed applications.
- Corrosion Resistance & Longevity: Manufactured entirely from stainless steel, this bearing is inherently resistant to rust and corrosion, ensuring reliable performance in harsh environments and contributing to a long service life.
- Maintenance-Free Operation: The shielded (2Z) construction and factory-applied grease make the bearing sealed for life, eliminating the need for relubrication and reducing maintenance costs.
W 628/6 R-2Z Bearing Typical Application Areas
- Small Precision Motors: Ideal for spindle and rotor support in miniature DC motors, stepper motors, and fans.
- Medical and Dental Equipment: Used in handheld tools, pumps, and scanners where corrosion resistance, compact size, and reliability are paramount.
- Office Automation & Robotics: Suitable for scanners, printers, and small robotic joints requiring precise motion and high-speed operation.
- Instrumentation and Control Systems: Employed in encoders, sensors, and gauges that demand smooth, low-noise, and accurate rotation.
