W 619/2.5 R
W Series Stainless Steel Flanged Miniature Bearings
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Part No.
Part No.
W 619/2.5 R
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.0006 kg
Tolerance class
P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
2.5 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
7 mm
Outside diameter tolerance
-0.008mm to 0
Width
2.5 mm
Width tolerance
-0.04mm to 0
Outer Ring Dimensions
Flange outer diameter
8.5 mm
Flange thickness
0.7 mm
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
50 lbf
Radial static load rating
15 lbf
Limiting speed
100 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
No drawings available at the moment, will be launched soon
In Stock
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W 619/2.5 R Bearing Product Overview & Core Advantages
The W 619/2.5 R is a miniature deep groove ball bearing designed for applications requiring compact dimensions and reliable performance in radial load conditions. Featuring a single row design and open construction, this metric bearing is manufactured entirely from stainless steel, providing excellent corrosion resistance. Its extremely small size, with a 2.5 mm bore and 7 mm outside diameter, makes it ideal for space-constrained, high-precision mechanisms. The bearing is supplied without lubrication, offering flexibility for specialized application requirements.
W 619/2.5 R Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| W 619 | Bearing series designation for miniature deep groove ball bearings. |
| 2.5 | Nominal bore diameter in millimeters (2.5 mm). |
| R | Indicates the presence of a flange on the outer ring for simplified mounting and axial location. |
W 619/2.5 R Bearing Structural Features & Performance Benefits
- Flange Design: The integrated flange (outer diameter 8.5 mm) facilitates easy and secure installation, ensuring precise axial positioning without the need for complex housing designs.
- All-Stainless-Steel Construction: Rings, balls, and cage are made from stainless steel, providing superior corrosion resistance and suitability for harsh environments or clean applications.
- High-Speed Capability: With a limiting speed of 100,000 rpm, this bearing is engineered for high-speed applications common in miniature precision equipment.
- Precision Tolerances: Manufactured to P0 tolerance class and standard CN radial internal clearance, ensuring consistent performance and smooth operation.
- Application Flexibility: The open seal type and absence of factory lubrication allow engineers to select the optimal lubricant for specific operational conditions.
W 619/2.5 R Bearing Typical Application Areas
This miniature flanged bearing is ideally suited for:
- Small Precision Motors and stepper motors
- Medical and Dental Hand Tools
- Miniature Gearboxes and drive systems
- Optical Encoders and Scanning Devices
- Instrumentation and Laboratory Equipment
- RC Models and Drones
