W 626/W64
W Series Stainless Steel Miniature Bearings
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Part No.
Part No.
W 626/W64
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.0071 kg
Tolerance class
ABEC 1 | ISO P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
6 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
19 mm
Outside diameter tolerance
-0.009mm to 0
Width
6 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30°to 120 °C
Radial dynamic load rating
344 lbf
Radial static load rating
132 lbf
Limiting speed
56 X 1000 rpm
Lubrication
Soild Oil
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
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In Stock
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W 626/W64 Bearing Product Overview & Core Advantages
The W 626/W64 is a single row deep groove ball bearing designed for exceptional performance in compact applications. Engineered with stainless steel rings and balls, it offers excellent corrosion resistance. A key feature is its Solid Oil lubrication, providing long-term, maintenance-free operation across a wide temperature range from -30°C to 120°C. This bearing is ideal for applications demanding high reliability, smooth operation, and protection against harsh environments.
W 626/W64 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| W 626 | Basic bearing designation, indicating a single row deep groove ball bearing with a 6 mm bore. |
| /W64 | Suffix denoting the bearing is lubricated with Solid Oil and is made from stainless steel. |
W 626/W64 Bearing Structural Features & Performance Benefits
- Corrosion Resistance & Cleanliness: Constructed entirely from stainless steel, this bearing is inherently resistant to rust and corrosion, making it suitable for food processing, medical, and chemical environments. It is also ROHS and REACH compliant.
- Maintenance-Free Operation: The integrated Solid Oil lubrication system ensures a consistent and reliable lubricant supply, eliminating the need for re-lubrication and preventing oil leakage. This contributes to a long service life and reduced maintenance costs.
- High-Speed Capability: With a limiting speed of 56,000 rpm, the bearing is engineered for high-speed applications. The precision ABEC 1 | ISO P0 tolerance and optimized internal geometry ensure smooth, low-vibration, and low-noise rotation.
- Radial Load Capacity: As a deep groove ball bearing, it is primarily designed to support significant radial loads (dynamic: 344 lbf, static: 132 lbf), while also accommodating moderate axial loads in both directions.
W 626/W64 Bearing Typical Application Areas
This versatile bearing is commonly specified in:
- High-speed small motors and spindles
- Medical and dental handpieces
- Food processing and packaging machinery
- Precision instruments and optical devices
- Office automation equipment (e.g., printers, scanners)
- Robotics and small gearboxes
