W 619/7 R
W Series Stainless Steel Flanged Miniature Bearings
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Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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W 619/7 R Bearing Product Overview & Core Advantages
The W 619/7 R is a metric single row deep groove ball bearing designed for high-precision applications requiring compact design and reliable performance. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its open design facilitates high-speed operation, while the P0 tolerance class ensures consistent running accuracy. This bearing is engineered to handle primarily radial loads efficiently, making it an ideal choice for applications demanding precision and durability in a compact footprint.
W 619/7 R Bearing Model Code Explained, Specifications & Naming Convention
- W 619/7: Basic model number for a metric, single row deep groove ball bearing with a 7 mm bore.
- R: Designates the use of stainless steel for the rings, balls, and cage, providing enhanced corrosion resistance.
Note: This bearing features an Open (unsealed) design and comes with No Lubrication from the factory, allowing for application-specific lubrication or dry running in certain environments.
W 619/7 R Bearing Structural Features & Performance Benefits
The W 619/7 R leverages its deep groove raceway and stainless steel construction to deliver key performance benefits:
- Corrosion Resistance: The all-stainless-steel build (rings, balls, cage) ensures reliable operation in humid or corrosive environments, complying with ROHS and REACH standards.
- High-Speed Capability: The open, non-contact design and precision manufacturing contribute to a high limiting speed of 56,000 rpm, suitable for demanding rotational applications.
- Radial Load Capacity: The deep groove geometry is optimized to support significant radial dynamic and static load ratings for its compact size.
- Precision Performance: Manufactured to P0 tolerance class and standard CN radial internal clearance, this bearing provides smooth and accurate operation.
W 619/7 R Bearing Typical Application Areas
The combination of compact dimensions, corrosion resistance, and high-speed performance makes the W 619/7 R bearing suitable for a wide range of precision equipment, including:
- Small electric motors and spindles
- Medical and dental instruments
- Precision optical devices and instrumentation
- Food processing machinery (where corrosion resistance is key)
- Office automation equipment
