619/5
618 & 619 Series Thin Section Bearings
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Basic Information
Main Dimensions
Performance
Materials
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619/5 Bearing Product Overview & Core Advantages
The 619/5 is a metric miniature deep groove ball bearing designed for precision applications requiring compact dimensions and reliable performance. As a single row bearing with an open design, it excels in handling radial loads efficiently. Manufactured to a P6 tolerance class, this bearing offers high running accuracy, making it an ideal component for high-speed and high-precision mechanisms where space is limited and performance is critical.
619/5 Bearing Model Code Explained, Specifications & Naming Convention
- 619: Series code indicating a miniature deep groove ball bearing with a particularly thin cross-section.
- /5: Specifies a bore diameter of 5 mm.
- P6: Denotes a tolerance class tighter than standard, ensuring higher dimensional and running accuracy.
- CN: Indicates standard (normal) radial internal clearance.
- Open: Specifies that the bearing has no seals or shields, allowing for higher limiting speeds and easy re-lubrication if required.
619/5 Bearing Structural Features & Performance Benefits
The 619/5's performance is derived from its optimized construction and material selection. The single row of precision balls within the deep groove raceways provides excellent capability for handling radial dynamic loads up to 199 lbf. The use of a stainless steel cage ensures durability and stable operation at the high limiting speed of 70,000 rpm. The open seal type minimizes friction, which is crucial for achieving maximum rotational speeds. Both the rings and balls are made from chrome steel, offering high hardness and wear resistance, contributing to a long service life in demanding applications.
619/5 Bearing Typical Application Areas
- Small precision electric motors and spindles
- Medical and dental handpieces
- Optical encoders and instrumentation
- Office automation equipment (e.g., printers, scanners)
- Robotics and miniature gearboxes
