SF63804ZZ
SF Series Stainless Steel Flanged 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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SF63804ZZ Bearing Product Overview & Core Advantages
The SF63804ZZ is a flanged single row ball bearing designed for compact installations requiring precise radial positioning. Its integral flange provides secure mounting and axial location without additional components. Manufactured with stainless steel rings and cage, this bearing offers excellent corrosion resistance while maintaining high precision through ABEC-1 tolerance class. The shielded design (ZZ suffix) provides effective contaminant protection while allowing for high-speed operation up to 18,900 rpm. This bearing is particularly suitable for applications demanding compact design, corrosion resistance, and reliable performance in various industrial environments.
SF63804ZZ Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
| SF63804 | Basic bearing designation indicating flanged design with 20mm bore diameter | Standardized sizing for easy replacement and integration |
| ZZ | Double shielded construction on both sides | Enhanced contaminant protection while maintaining high-speed capability |
SF63804ZZ Bearing Structural Features & Performance Benefits
Flanged Design: The integrated flange (35mm outer diameter, 2mm thickness) provides positive axial location and simplifies housing design, reducing assembly complexity and cost.
Precision Construction: With ABEC-1 tolerance class and C0 radial clearance (0.002mm to 0.013mm), this bearing ensures smooth operation and precise rotational accuracy for demanding applications.
Material Excellence: The combination of stainless steel rings, chrome steel balls, and stainless steel cage provides excellent corrosion resistance while maintaining dimensional stability across the operating temperature range (-30° to 110°C).
Optimized Load Capacity: Featuring 13 balls of 3.5mm diameter, the bearing achieves a radial dynamic load rating of 812 lbf and static load rating of 498 lbf, providing reliable performance under substantial radial loads.
High-Speed Performance: The optimized internal geometry and shielded design enable operation at limiting speeds up to 18,900 rpm, making it suitable for various high-speed applications.
SF63804ZZ Bearing Typical Application Areas
- Precision Instruments: Optical encoders, measuring devices, and laboratory equipment requiring high rotational accuracy
- Small Motors: Stepper motors, servo motors, and DC motors where compact design and reliable performance are critical
- Office Automation: Printers, scanners, and copiers requiring quiet operation and long service life
- Medical Devices: Dental handpieces, small pumps, and diagnostic equipment benefiting from corrosion resistance
- Industrial Automation: Small robotic joints, positioning systems, and conveyor components requiring precise motion control
