F604
F Series Flanged Miniature Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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F604 Bearing Product Overview & Core Advantages
The F604 is a metric miniature ball bearing designed for precision applications requiring compact dimensions and reliable performance. As a single row deep groove ball bearing with an open design, it excels in handling radial loads efficiently. Its construction from high-grade chrome steel ensures durability and consistent operation. This bearing is characterized by its small bore diameter of 4 mm and lightweight design (2.42 g), making it ideal for high-speed applications with a limiting speed of 48,000 rpm. Manufactured to ABEC1 tolerance class, it offers a cost-effective solution for applications demanding fundamental precision and high reliability.
F604 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| F604 | Standard model number for a metric, open, single row deep groove ball bearing. |
| Open (Seal Type) | No integral seals or shields. Allows for high-speed operation and requires external lubrication and protection from contaminants. |
| ABEC1 | Specifies the precision tolerance class, ensuring controlled runout and dimensional accuracy for smooth operation. |
| MC3 | Indicates the radial internal clearance group, which is greater than normal (C3), suitable for applications with thermal expansion or where interference fits are used. |
F604 Bearing Structural Features & Performance Benefits
- Deep Groove Raceway & Single Row Design: The deep groove geometry on both inner and outer rings enables the bearing to handle significant radial loads. The single row construction contributes to a compact bearing size and low weight.
- High-Speed Capability: The combination of an open design, stainless steel cage, and precision manufacturing allows for a high limiting speed of 48,000 rpm, making it a capable high-speed bearing.
- Robust Material Construction: Rings and balls made from chrome steel provide high hardness, wear resistance, and a long operational life. The stainless steel cage offers excellent corrosion resistance and strength.
- Precision Engineering: Manufactured to ABEC1 tolerances, this bearing ensures smooth and quiet running, minimizing vibration and noise in sensitive applications.
- MC3 Internal Clearance: The specified radial internal clearance (0.002mm to 0.013mm) accommodates thermal expansion in the shaft or housing, preventing preload and ensuring optimal performance across its operating temperature range (-30° to 110 °C).
F604 Bearing Typical Application Areas
The F604 miniature ball bearing is engineered for a wide range of compact and high-speed machinery. Key application areas include:
- Small Electric Motors: Ideal for spindle and rotor support in miniature DC motors, fans, and drones.
- Precision Instruments: Used in optical encoders, medical devices, and laboratory equipment where small bearing dimensions and reliability are critical.
- Office Automation Equipment: Suitable for printers, scanners, and copiers.
- Radio-Control Models & Hobbyist Projects: Provides durable and smooth rotation in wheels, gears, and small drive systems.
