W 619/3 R
W Series Stainless Steel Flanged Miniature Bearings
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Part No.
Part No.
W 619/3 R
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.0007 kg
Tolerance class
P0
Seal type
Open
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
Outer Ring Dimensions
Flange outer diameter
9.5 mm
Flange thickness
0.7 mm
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
72 lbf
Radial static load rating
20 lbf
Limiting speed
95 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 619/3 R Bearing Product Overview & Core Advantages
The W 619/3 R is a metric miniature deep groove ball bearing designed for precision applications requiring compact dimensions and reliable performance. Constructed entirely from stainless steel, this single row, open bearing excels in handling radial loads and offers excellent corrosion resistance. Its small footprint, with a 3 mm bore and 8 mm outside diameter, makes it ideal for space-constrained assemblies. The bearing operates effectively within a wide temperature range and complies with ROHS and REACH standards, ensuring suitability for demanding industrial and technical environments.
W 619/3 R Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| W | Stainless Steel Bearing Series |
| 619/3 | Deep Groove Ball Bearing designation with 3 mm bore diameter |
| R | Flanged Outer Ring |
W 619/3 R Bearing Structural Features & Performance Benefits
- Compact & Robust Flange Design: The integrated flange (9.5 mm outer diameter) facilitates secure and precise mounting, simplifying assembly and enhancing positional stability in housings.
- All-Stainless Steel Construction: The bearing rings, balls, and cage are manufactured from stainless steel, providing superior corrosion resistance and making it suitable for applications exposed to moisture or aggressive environments.
- High-Speed Capability: With a limiting speed of 95,000 rpm, this bearing is engineered for high-speed operation, a critical feature for miniature precision machinery.
- Precision Tolerance: Manufactured to P0 tolerance class and standard CN radial internal clearance, it ensures consistent performance and smooth running in precision applications.
- Maintenance Consideration: The open design allows for custom lubrication strategies but requires a clean operating environment or external sealing for optimal service life.
W 619/3 R Bearing Typical Application Areas
This miniature flanged bearing is ideally suited for:
- Small Precision Motors and stepper motors
- Medical and Dental Handpieces
- Optical Encoders and precision instrumentation
- Office Automation Equipment (e.g., printers, scanners)
- Robotics and miniature gearboxes
- Small fans and pumps
