W 625
W Series Stainless Steel Miniature Bearings
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Part No.
Part No.
W 625
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.0044 kg
Tolerance class
P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
5 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
16 mm
Outside diameter tolerance
-0.008mm to 0
Width
5 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
321 lbf
Radial static load rating
142 lbf
Limiting speed
63 X 1000 rpm
Lubrication
None
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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In Stock
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W 625 Bearing Product Overview & Core Advantages
The W 625 is a metric single row deep groove ball bearing engineered for high-performance applications requiring precision and reliability. Constructed entirely from stainless steel, it offers excellent corrosion resistance. This bearing is designed to primarily accommodate radial loads and is characterized by its compact dimensions (5 mm bore, 16 mm OD, 5 mm width), making it ideal for space-constrained assemblies. Its open seal type and P0 tolerance class ensure smooth operation and consistent performance in a wide range of industrial settings.
W 625 Bearing Model Code Explained, Specifications & Naming Convention
The model designation "W 625" follows a standard industry nomenclature. Below is a breakdown of its key characteristics implied by the specification data:
- W: Manufacturer's series prefix.
- 625: Standard bearing size designation indicating a 5 mm bore, 16 mm outside diameter, and 5 mm width.
- Key Inferred Specifications:
- Seal Type: Open - Allows for high-speed operation and is suitable for environments where external sealing is provided.
- Lubrication: None - Requires initial lubrication based on application needs.
- Tolerance Class: P0 (Normal) - Provides a standard level of running accuracy.
- Clearance: CN (Normal) - Standard radial internal clearance.
W 625 Bearing Structural Features & Performance Benefits
- All-Stainless-Steel Construction: The rings, balls, and cage are made from stainless steel, providing superior corrosion resistance and making the bearing suitable for harsh environments, including those with exposure to moisture or chemicals.
- High-Speed Capability: The open design and precision engineering contribute to a high limiting speed of 63,000 rpm, ideal for demanding high-speed applications.
- Robust Load Capacity: With a dynamic load rating of 321 lbf and a static load rating of 142 lbf, this bearing offers reliable performance under significant radial stresses.
- Precision and Stability: Manufactured to P0 tolerance class with standard CN radial clearance, ensuring consistent operation and ease of integration into precision mechanisms.
W 625 Bearing Typical Application Areas
This versatile bearing is commonly specified in:
- Small Electric Motors and Gearboxes
- Precision Instruments and Medical Devices
- Office Automation Equipment (e.g., printers, scanners)
- Food Processing and Packaging Machinery (benefiting from its stainless-steel construction)
- Various Robotic and Automation Components
