W 619/3
W Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Performance
Materials
Environment & Compliance
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
W 619/3 Bearing Product Overview & Core Advantages
The W 619/3 is a metric, single row deep groove ball bearing designed for high-performance applications requiring precision and reliability. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its primary function is to support radial loads efficiently. Key advantages include its compact design with a 3 mm bore, a high limiting speed of 95,000 rpm, and compliance with RoHS and REACH standards, making it suitable for demanding and regulated environments.
W 619/3 Bearing Model Code Explained, Specifications & Naming Convention
- W 619/3: Basic model number for a single row deep groove ball bearing with a 3 mm bore.
- Open: The bearing features no seals or shields, allowing for higher speeds and easy re-lubrication if required.
- P0: Indicates a Normal tolerance class (standard ABEC 1).
- CN: Specifies a Normal group radial internal clearance.
- Lubrication: None: The bearing is supplied without grease, suitable for applications where a specific lubricant is applied by the user or for very high-speed operation.
W 619/3 Bearing Structural Features & Performance Benefits
The single row deep groove construction is a versatile and widely used design. The raceways are deep and continuous, enabling the bearing to handle not only radial loads but also moderate axial loads in both directions. The use of stainless steel for all components (rings, balls, and cage) ensures superior corrosion resistance and operational integrity in harsh or washdown environments. The open design, combined with a stainless steel cage, contributes to the high limiting speed, making it an excellent choice for high-speed applications. The standardized P0 tolerance and CN clearance provide consistent and reliable performance for a wide range of general-purpose uses.
W 619/3 Bearing Typical Application Areas
This bearing is ideal for applications requiring a compact, corrosion-resistant, and high-speed solution. Common uses include:
- Small precision electric motors
- Medical and dental handpieces
- Optical encoders and instrumentation
- Office automation equipment (e.g., small fans, printers)
- Radio-controlled models and drones
