SFRW188zz
SFRW Series Stainless Steel Extended Inner Ring 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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SFRW188zz Bearing Product Overview & Core Advantages
The SFRW188zz is a single row ball bearing designed for high precision and reliable performance in demanding applications. Manufactured entirely from stainless steel, it offers excellent corrosion resistance. Its shielded design provides effective protection against contamination while maintaining low operating torque. This bearing is engineered to support primarily radial loads and is characterized by its compact design with an extended inner ring for simplified mounting and positioning. With an ABEC1 tolerance class, it ensures consistent and smooth operation, making it an ideal choice for applications requiring a balance of performance and cost-effectiveness.
SFRW188zz Bearing Model Code Explained, Specifications & Naming Convention
| Suffix / Prefix | Technical Meaning | Benefit |
|---|---|---|
| SF | Flanged Outer Ring | Simplifies housing design and enables precise axial location. |
| R | Extended Inner Ring | Facilitates easier installation and secure locking on the shaft. |
| W | Stainless Steel Construction | Provides superior corrosion resistance for harsh environments. |
| zz | Shielded on Both Sides | Offers effective protection from contaminants, preserving bearing life and performance. |
SFRW188zz Bearing Structural Features & Performance Benefits
- Robust Stainless Steel Construction: All components, including rings, balls, and cage, are made from stainless steel, ensuring high corrosion resistance and durability in a wide temperature range from -86 to 230 °F.
- Optimized Load Capacity: With a radial dynamic load rating of 310 lbf and a static rating of 72 lbf, this bearing is capable of handling significant radial forces for its compact bearing dimensions (0.25" bore, 0.5" OD).
- High-Speed Capability: The combination of a stainless steel cage, eight precision balls, and a MC3 radial internal clearance allows for a high limiting speed of 43,200 rpm, suitable for demanding rotational applications.
- Pre-Protected Design: The non-contact shields (zz) protect the bearing from dust and debris ingress, reducing maintenance needs and extending service life. Note that lubrication is required by the user for optimal performance.
- Precision Engineering: Manufactured to ABEC1 tolerances, this bearing provides reliable running accuracy and smooth operation, minimizing vibration and noise.
SFRW188zz Bearing Typical Application Areas
The SFRW188zz is ideally suited for a variety of precision applications across multiple industries, including:
- Medical and Dental Equipment: Surgical handpieces, small pumps, and diagnostic devices requiring corrosion resistance and reliability.
- Food and Beverage Processing: Conveyor systems and mixers where stainless steel construction is mandatory.
- Precision Instruments and Optics: Encoders, scanners, and small gearboxes demanding high-speed and smooth operation.
- Small Motors and Robotics: Servo motors, drone propulsion systems, and robotic joint assemblies.
- Office Automation: Printers, scanners, and copiers requiring durable, long-life components.
