SF623zz
SF Series Stainless Steel 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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SF623zz Bearing Product Overview & Core Advantages
The SF623zz is a metric miniature ball bearing engineered for precision and reliability in compact applications. As a single row, shielded radial ball bearing, it is designed to primarily handle radial loads efficiently. Its construction from stainless steel throughout (rings, balls, and cage) provides excellent corrosion resistance, making it suitable for demanding environments. The bearing offers a high limiting speed of 45,000 rpm and features a standardized ABEC1 tolerance class, ensuring consistent performance and interchangeability. Its compact bearing dimensions (3mm bore, 10mm OD, 4mm width) and integrated flange for secure mounting make it an ideal choice for applications where space is at a premium and high reliability is required.
SF623zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance & Advantage |
|---|---|---|
| SF623 | Basic bearing designation indicating the size series (6) and bore diameter (3mm). | Defines the core bearing dimensions and series. |
| zz | Denotes a bearing with shielded seals on both sides. | The shielded design offers effective protection against contaminants like dust and debris, enhancing bearing life and reliability. It is a non-contact seal, minimizing friction and allowing for high-speed operation. |
SF623zz Bearing Structural Features & Performance Benefits
- Robust Stainless Steel Construction: All critical components—inner and outer rings, balls, and cage—are manufactured from stainless steel. This provides superior corrosion resistance, essential for operation in humid or chemically aggressive environments, and ensures dimensional stability.
- High-Speed Capability: The combination of a stainless steel cage, precision-ground balls, and shielded (non-contact) seals minimizes friction and heat generation, enabling a high limiting speed of 45,000 rpm. This makes it suitable for high-speed applications like small spindles and fans.
- Precision and Reliability: Manufactured to ABEC1 tolerance standards with a controlled radial internal clearance (MC3 group), this bearing ensures smooth, low-vibration, and consistent operation, which is critical for precision instruments.
- Integrated Flange: The flange (11.5mm OD) allows for simplified and secure mounting, eliminating the need for complex housing designs and providing excellent axial location.
SF623zz Bearing Typical Application Areas
- Small Electric Motors and Precision Gearboxes
- Medical and Dental Hand Tools
- Office Automation Equipment (e.g., Printers, Scanners)
- Radio-Control Models and Drones
- Instrumentation and Precision Measuring Devices
- Small Fans and Blowers
