W 627-2Z
W Series Stainless Steel Miniature Bearings
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Part No.
Part No.
W 627-2Z
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.012 kg
Tolerance class
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
38 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
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W 627-2Z Bearing Product Overview & Core Advantages
The W 627-2Z is a single row deep groove ball bearing designed for exceptional performance in compact applications. Constructed entirely from stainless steel, it offers superior corrosion resistance. Its key advantage lies in its ability to handle significant radial loads while its shielded (2Z) design provides effective contaminant protection and retains lubricant, making it a reliable, low-maintenance solution for a wide range of industrial and precision equipment.
Model Code Breakdown
| Code Segment | Technical Meaning | Benefit |
|---|---|---|
| W | Stainless Steel Bearing | Provides excellent corrosion resistance. |
| 627 | Standard bearing series designation (7mm Bore, 22mm OD, 7mm Width). | Defines the bearing dimensions and internal geometry. |
| 2Z | Bearing with shields on both sides. | Protects against contaminants and retains grease, enabling a maintenance-free service life. |
W 627-2Z Bearing Structural Features & Performance Benefits
- All-Stainless Steel Construction: The rings, balls, and cage are made from stainless steel, making the bearing ideal for applications requiring high corrosion resistance and cleanliness.
- Deep Groove Raceway: This geometry is optimized for carrying radial dynamic load ratings of up to 447 lbf, ensuring reliable operation under stress.
- Shielded Design (2Z): The non-contact steel shields effectively keep out dust and other particulates while sealing in the factory-applied grease lubrication, contributing to a long, maintenance-free operational life.
- Precision Tolerances (P0): Manufactured to P0 tolerance class with standard CN radial internal clearance, ensuring consistent performance and smooth running for a wide array of general applications.
W 627-2Z Bearing Typical Application Areas
- Medical and Dental Equipment
- Food Processing and Packaging Machinery
- Precision Instruments and Optical Devices
- Small Electric Motors and Gearboxes
- Agricultural Sprayers and Machinery
- Conveyor Systems in Corrosive Environments
