W 619/1
W Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
W 619/1
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.0001 kg
Tolerance class
P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
1 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
4 mm
Outside diameter tolerance
-0.008mm to 0
Width
1.6 mm
Width tolerance
-0.04mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
18 lbf
Radial static load rating
4 lbf
Limiting speed
140 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
Price available upon request.
Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
REQUEST A QUOTE
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
W 619/1 Bearing Product Overview & Core Advantages
The W 619/1 is a metric miniature deep groove ball bearing designed for applications requiring compact dimensions and reliable performance. As a single row, open bearing, it excels in handling primarily radial loads. Manufactured entirely from stainless steel, it offers excellent corrosion resistance. Its P0 tolerance class and CN radial internal clearance ensure consistent operation, making it suitable for high-precision, space-constrained mechanisms.
W 619/1 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| W | Stainless Steel Deep Groove Ball Bearing series |
| 619 | Bearing series designation (extra-light, miniature series) |
| /1 | Variant or size identifier within the 619 series |
| Open (No Seal Code) | No contact seals or shields, allowing for higher limiting speeds and minimal friction. |
| None (Lubrication) | Supplied without grease, enabling user-specific lubrication selection for the application. |
W 619/1 Bearing Structural Features & Performance Benefits
- Compact and Lightweight Design: With a bore diameter of 1 mm and a weight of only 0.0001 kg, this bearing is ideal for miniaturized assemblies where space and mass are critical constraints.
- High-Speed Capability: The open design and stainless steel cage contribute to a high limiting speed of 140,000 rpm, suitable for very fast-rotating spindles and small motors.
- Corrosion Resistance: All components, including rings, balls, and cage, are made from stainless steel, providing reliable performance in humid or corrosive environments and ensuring ROHS and REACH compliance.
- Precision Performance: Built to P0 tolerance class and standard CN radial internal clearance, this bearing offers predictable and smooth running characteristics for precision instruments.
W 619/1 Bearing Typical Application Areas
This miniature bearing is engineered for high-performance in compact devices. Key applications include:
- Precision Instruments: Optical encoders, gauges, and medical devices.
- Small Motors and Spindles: High-speed DC micromotors, dental handpieces, and spindle drives.
- Office Automation Equipment: Printers, scanners, and small fans.
- Robotics and RC Models: Joints, gears, and drive systems in miniature robotic arms and hobbyist models.
