D/W R2A-2Z
D/W Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Performance
Materials
Environment & Compliance
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
D/W R2A-2Z Bearing Product Overview & Core Advantages
The D/W R2A-2Z is a precision miniature ball bearing designed for demanding applications requiring high reliability and compact design. This single row deep groove ball bearing excels in handling radial loads and offers a superior balance of performance and longevity. Manufactured entirely from stainless steel and featuring integral shields with pre-applied grease, it provides excellent corrosion resistance and is suitable for a wide operating temperature range, making it an ideal choice for high-speed, low-maintenance applications.
D/W R2A-2Z Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Benefit |
|---|---|---|
| R2 | Bearing series designation (Miniature, Inch) | Defines the compact size and inch-based dimensions. |
| A | 30° contact angle variant | Enables handling of light axial loads in addition to radial loads. |
| 2Z | Shielded on both sides | Provides effective protection against contamination while retaining grease, enhancing bearing life. |
D/W R2A-2Z Bearing Structural Features & Performance Benefits
All-Stainless-Steel Construction: The rings, balls, and cage are manufactured from stainless steel, offering outstanding corrosion resistance and making the bearing suitable for harsh environments and washdown applications.
Shielded Design: The non-contact 2Z shields effectively exclude contaminants like dust and debris while retaining the factory-applied lubricant. This design minimizes friction and contributes to the high limiting speed of 63,000 rpm, making it a capable high-speed bearing.
Pre-Lubricated & Low Maintenance: Pre-filled with grease, the bearing is ready for immediate use and requires no relubrication, ensuring long-term, maintenance-free operation within its specified temperature range.
Precision Tolerances: Manufactured to ABEC 1 (P0) tolerance class and standard radial internal clearance (CN), this bearing provides reliable and consistent performance for a wide range of general-purpose applications.
D/W R2A-2Z Bearing Typical Application Areas
The D/W R2A-2Z is ideally suited for applications where compact size, corrosion resistance, and high-speed capability are critical. Common uses include:
- Precision Instruments and Optical Encoders
- Small Electric Motors and Spindles
- Medical and Dental Handpieces
- Office Automation Equipment (e.g., Printers, Scanners)
- Robotics and Small Gearboxes
