D/W R168-2Z
D/W Series Stainless Steel Miniature Bearings
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D/W R168-2Z Bearing Product Overview & Core Advantages
The D/W R168-2Z is a single row deep groove ball bearing designed for precision applications requiring high reliability. This miniature bearing features a shielded design and is constructed entirely from stainless steel, providing excellent corrosion resistance. Its compact design and high limiting speed make it ideal for applications demanding space efficiency and rotational accuracy. The bearing is pre-lubricated with grease, offering immediate operational readiness and long-term performance.
D/W R168-2Z Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| D/W | Manufacturer series designation |
| R168 | Basic bearing size code (0.25" bore × 0.375" OD × 0.125" width) |
| 2Z | Double-shielded design providing effective contamination protection while maintaining high-speed capability |
D/W R168-2Z Bearing Structural Features & Performance Benefits
Deep Groove Design: The optimized raceway geometry enables smooth operation and efficient handling of radial loads while accommodating moderate axial loads in both directions.
Stainless Steel Construction: All components (rings, balls, cage) are manufactured from stainless steel, ensuring excellent corrosion resistance and suitability for harsh environments.
Shielded Protection: The double-shielded (2Z) configuration effectively excludes contaminants while minimizing friction, contributing to the high limiting speed of 60,000 rpm.
Precision Engineering: Manufactured to P0 tolerance class with CN radial clearance, ensuring consistent performance and reliable operation in precision applications.
Maintenance-Free Operation: Pre-lubricated with high-quality grease suitable for the specified temperature range (-30° to 120°C), providing long service life without relubrication.
D/W R168-2Z Bearing Typical Application Areas
- Medical devices and surgical instruments
- Precision instruments and measuring equipment
- Small motors and miniature drives
- Office automation equipment and printers
- Robotics and automation components
- Dental handpieces and laboratory equipment
- Aerospace instrumentation and control systems
