W 627/7-2Z
W Series Stainless Steel Miniature Bearings
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Part No.
Part No.
W 627/7-2Z
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.012 kg
Tolerance class
ABEC 1 | ISO P0
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
7 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
22 mm
Outside diameter tolerance
-0.009mm to 0
Width
7 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30°to 120 °C
Radial dynamic load rating
447 lbf
Radial static load rating
175 lbf
Limiting speed
48 X 1000 rpm
Lubrication
None
Radial internal clearance
CN
Materials
Ring material
Stainless Steel
Ball material
Stainless Steel
Cage material
Chrome Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1.16
/ each
In Stock
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W 627/7-2Z Bearing Product Overview & Core Advantages
The W 627/7-2Z is a single row deep groove ball bearing engineered for high performance in compact spaces. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its key advantage lies in its ability to handle significant radial loads while its shielded design ensures protection from contaminants. This bearing is characterized by its precision tolerances (ABEC 1 | ISO P0) and is ideal for applications demanding reliability, smooth operation, and long service life without lubrication.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| W 627/7 | Basic bearing series designation, indicating a metric, single row deep groove ball bearing with a 7 mm bore. |
| 2Z | Signifies that the bearing is equipped with shields on both sides. This provides effective protection against solid contaminants while maintaining low friction and allowing for high-speed operation. |
W 627/7-2Z Bearing Structural Features & Performance Benefits
- Robust Construction & Corrosion Resistance: The use of stainless steel for all critical components (rings, balls) ensures superior performance in harsh or washdown environments, enhancing the bearing's longevity.
- Optimized Load Capacity: The deep groove raceway and single row design are optimized to support high radial dynamic load ratings (447 lbf), making it a reliable choice for sustained operational loads.
- High-Speed Capability: The combination of shields (2Z) and a chrome steel cage enables a high limiting speed of 48,000 rpm, suitable for demanding high-rotation applications.
- Maintenance-Free Operation: The bearing is supplied without lubrication ("None"), which is ideal for applications where lubricant migration is a concern or in environments that would degrade standard greases. The sealed design helps to retain any subsequently applied lubricant.
- Precision Performance: Manufactured to ABEC 1 / ISO P0 tolerance class and standard radial internal clearance (CN), it guarantees consistent running accuracy and smooth operation.
W 627/7-2Z Bearing Typical Application Areas
- Electric Motors and Small Gearboxes
- Medical and Dental Equipment
- Food and Beverage Processing Machinery
- Precision Instruments and Optical Devices
- Conveyor System Rollers
- Office Automation Equipment
