W 619/3-2Z
W Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
W 619/3-2Z
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.000613 kg
Tolerance class
P0
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
3 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
8 mm
Outside diameter tolerance
-0.008mm to 0
Width
3 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
51 lbf
Radial static load rating
16 lbf
Limiting speed
75 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:
$ 2.44
/ each
In Stock
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W 619/3-2Z Bearing Product Overview & Core Advantages
The W 619/3-2Z is a metric miniature deep groove ball bearing designed for precision applications requiring compact dimensions and reliable performance. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its key advantage lies in its ability to handle radial loads efficiently while being shielded (2Z) on both sides to retain lubricant and exclude contaminants, ensuring long service life and low maintenance in demanding environments. This bearing is ideal for applications where space is limited and high reliability is critical.
W 619/3-2Z Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| W 619/3 | Indicates the bearing series and size. "W" often denotes a stainless steel series, "619" is the deep groove ball bearing series, and "/3" specifies a 3 mm bore diameter. |
| 2Z | Signifies that the bearing is equipped with non-contact shields on both sides. This provides effective protection against contamination while allowing for high rotational speeds. |
W 619/3-2Z Bearing Structural Features & Performance Benefits
- Compact & Robust Design: The single row deep groove geometry and small cross-section (3mm width) make it suitable for extremely compact assemblies, while the all-stainless steel construction provides durability.
- Effective Sealing: The 2Z shields protect the internal components from dust and other particles, and securely retain the pre-applied grease, contributing to a maintenance-free operation.
- Precision & Speed: Manufactured to P0 tolerance class with CN radial internal clearance, it ensures smooth and precise operation. The design supports a limiting speed of 75,000 rpm, making it a capable high-speed bearing for its size.
- Corrosion Resistance & Compliance: The use of stainless steel for all components ensures performance in humid or corrosive environments. The bearing is ROHS and REACH compliant, meeting stringent environmental standards.
W 619/3-2Z Bearing Typical Application Areas
This miniature deep groove ball bearing is commonly used in:
- Small Precision Motors (e.g., in drones, medical devices)
- Instrumentation and Control Systems
- Office Automation Equipment (printers, scanners)
- Radio-Controlled Models and Hobbyist Applications
- Low-Torque, High-Speed Spindles
