71803 CD/P4DFBVT162
71800 Series Super Precision Angular Contact Ball Bearings
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71803 CD/P4DFBVT162 Bearing Product Overview & Core Advantages
The 71803 CD/P4DFBVT162 is a precision duplex angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. This matched set bearing features a Face-to-Face (DF) duplex arrangement with a Light preload (Class B), making it ideal for high-speed spindles and precision machinery. Its compact design, with a 17 mm bore and 10 mm width, provides a high-performance solution in a minimal footprint. The bearing is engineered to handle combined loads efficiently, offering superior stability and operational reliability in demanding conditions.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 71803 | Basic bearing series and size designation (17mm bore, 26mm OD). |
| CD | Duplex bearing pair with a specific preload and clearance. |
| P4 | High precision tolerance class for superior running accuracy. |
| DF | Duplex Face-to-Face arrangement, increasing moment load capacity and system rigidity. |
| B | Specifies a Light preload (Class B) for optimal stiffness and minimal friction. |
| VT162 | Lubrication code, indicating the type of grease used for the specified temperature range. |
71803 CD/P4DFBVT162 Bearing Structural Features & Performance Benefits
The performance of the 71803 CD/P4DFBVT162 is defined by its advanced construction. The duplex face-to-face arrangement creates a highly rigid bearing system, essential for applications with significant moment loads. The 15° contact angle is optimized to handle combined radial and axial loads simultaneously. The phenolic resin cage contributes to the bearing's high-speed capability, allowing for a limiting speed of 103,000 rpm with minimal centrifugal forces and excellent lubrication retention. Manufactured to a P4 precision tolerance with tight dimensional control on the bearing dimensions (bore, OD, and width), this bearing ensures smooth, vibration-free operation and long service life.
71803 CD/P4DFBVT162 Bearing Typical Application Areas
This high-precision duplex bearing is ideally suited for advanced machinery and systems where accuracy and speed are paramount. Key application areas include:
- High-frequency machine tool spindles
- Precision grinding machine heads
- High-speed robotic arms and joints
- Medical and dental drill handpieces
- Advanced testing and measurement equipment
