W 627/7 R-2Z
W Series Stainless Steel Flanged Miniature Bearings
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W 627/7 R-2Z Bearing Product Overview & Core Advantages
The W 627/7 R-2Z is a metric single row deep groove ball bearing designed for high performance in compact spaces. Engineered with stainless steel rings and balls, it offers excellent corrosion resistance. A key feature is its integrated shields (2Z) which protect against contamination while maintaining high limiting speed capabilities. This bearing is precision-manufactured to ABEC 1 | ISO P0 tolerance standards, ensuring reliable operation and making it ideal for applications demanding high reliability and smooth running under radial loads.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| W 627/7 | Basic bearing designation indicating a single row deep groove ball bearing with a 7 mm bore diameter. |
| R | Designates a flanged outer ring, providing secure axial location and simplified housing design. |
| 2Z | Signifies non-contact shields on both sides. This provides effective protection against dust and other contaminants without significantly increasing friction, contributing to the high limiting speed. |
W 627/7 R-2Z Bearing Structural Features & Performance Benefits
- Robust Construction & Corrosion Resistance: The use of stainless steel for both rings and balls ensures superior resistance to rust and corrosion, making it suitable for harsh environments and washdown applications.
- Effective Contamination Protection: The 2Z shields seal the bearing, protecting the internal components from particulate contaminants. This extends service life and maintains performance without the torque increase associated with contact seals.
- High-Speed Capability: The combination of the deep groove geometry, precision manufacturing, and low-friction shielded design allows for a high limiting speed of 48,000 rpm.
- Simplified Assembly & Axial Location: The flanged outer ring (R) enables easy installation and precise axial positioning within the housing, reducing assembly time and cost.
- Precision Performance: Manufactured to ABEC 1 (ISO P0) tolerance class, this bearing provides consistent running accuracy and low noise and vibration levels.
W 627/7 R-2Z Bearing Typical Application Areas
The W 627/7 R-2Z is ideally suited for a wide range of compact and precision applications, including:
- Small Electric Motors (e.g., drones, precision tools, cooling fans)
- Medical and Dental Equipment
- Office Automation Equipment (printers, scanners)
- Food Processing and Packaging Machinery (where corrosion resistance is critical)
- Precision Instruments and Optical Devices
