7010 CD/P4ADFA
7000 Series Super Precision Angular Contact Ball Bearings
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7010 CD/P4ADFA Bearing Product Overview & Core Advantages
The 7010 CD/P4ADFA is a precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. This duplex face-to-face (DF) matched set features an Extra Light (A) preload and adheres to the stringent P4A tolerance class, ensuring superior running precision and minimal vibration. Its primary advantage lies in its ability to handle combined loads—significant radial and axial loads from both directions—simultaneously, making it ideal for high-speed, high-precision spindles and machinery where high rigidity and positional accuracy are paramount.
7010 CD/P4ADFA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7010 | Basic bearing designation (50mm bore, 80mm OD). |
| C | 15° contact angle, optimized for combined loads. |
| D | Duplex face-to-face (DF) mounting arrangement. |
| P4A | High precision tolerance class for superior running accuracy. |
| DFA | Specific preload designation: Extra light preload (Class A) within the duplex set. |
7010 CD/P4ADFA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex face-to-face (DF) arrangement of two bearings creates a highly rigid support system, significantly increasing moment stiffness. The 15° contact angle and robust construction enable it to sustain high combined radial and axial loads from both directions.
- Precision & High-Speed Performance: Manufactured to P4A tolerance class with an Extra Light preload, this bearing ensures minimal runout and smooth operation. The lightweight phenolic cage and optimized internal geometry contribute to a high limiting speed of 46,000 rpm, making it an excellent high-speed bearing.
- Material & Thermal Stability: Constructed from chrome steel for both rings and balls, the bearing offers high durability and wear resistance. The phenolic cage provides stability across the specified temperature range of -30°C to 110°C.
7010 CD/P4ADFA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, high-frequency motor spindles.
- Robotics: High-accuracy rotary joints and arms.
- Medical Equipment: Dental handpieces and laboratory centrifuges.