SFR155zz
SFR 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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SFR155zz Bearing Product Overview & Core Advantages
The SFR155zz is a miniature stainless steel ball bearing designed for precision applications requiring reliable performance in compact spaces. As a single row radial ball bearing with shielded construction, it offers excellent protection against contamination while maintaining smooth operation. Manufactured entirely from stainless steel components, this bearing provides superior corrosion resistance and is ideal for applications demanding high cleanliness and durability. Its ABEC1 precision class ensures consistent performance, making it suitable for various industrial and instrumentation applications where space constraints and reliability are critical factors.
SFR155zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| SFR | Flanged Miniature Bearing Series | Simplifies mounting and positioning in compact assemblies |
| 155 | Bore diameter: 0.15625" (5/32") | Standard inch size for compatibility with various shaft diameters |
| zz | Double-sided steel shields | Provides effective contamination protection while maintaining low friction |
SFR155zz Bearing Structural Features & Performance Benefits
Compact Flanged Design: The integrated flange (OD: 0.359") enables precise axial positioning and simplifies installation in housing designs, reducing assembly time and costs.
Stainless Steel Construction: All components including rings, balls, cage, and shields are manufactured from stainless steel, providing excellent corrosion resistance and making the bearing suitable for harsh environments and washdown applications.
Optimized Load Capacity: With a radial dynamic load rating of 62 lbf and static load rating of 24 lbf, this bearing handles moderate radial loads efficiently in compact spaces.
Precision Performance: The ABEC1 tolerance class and MC3 radial clearance (0.00008" to 0.0005") ensure smooth operation with minimal vibration, essential for precision applications.
High-Speed Capability: The limiting speed of 47,700 rpm makes it suitable for high-speed miniature applications, supported by 10 precision balls for balanced load distribution.
SFR155zz Bearing Typical Application Areas
- Medical Devices: Surgical instruments, dental handpieces, laboratory equipment
- Precision Instruments: Optical encoders, measuring devices, analytical instruments
- Small Motors: Micro motors, stepper motors, DC brushless motors
- Office Automation: Printers, scanners, copiers, fax machines
- Robotics: Small robotic joints, actuator mechanisms, positioning systems
- Food Processing: Small conveyors, packaging equipment where corrosion resistance is required
