7010 CD/P4ADBC
7000 Series Super Precision Angular Contact Ball Bearings
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7010 CD/P4ADBC Bearing Product Overview & Core Advantages
The 7010 CD/P4ADBC is a precision duplex angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. This metric system bearing features a back-to-back (DB) matched arrangement and a P4A tolerance class, making it ideal for machine tool spindles and other high-precision machinery. Its key advantage lies in its ability to support combined loads (radial and axial) simultaneously while maintaining high running accuracy and system stability under moderate preload (Class C). The compact design, with a 50 mm bore and 80 mm outside diameter, offers a high load capacity in a relatively small envelope.
7010 CD/P4ADBC Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7010 | Basic bearing designation indicating a 50 mm bore and 80 mm outside diameter. |
| C | Specifies a 15° contact angle, optimized for handling combined loads. |
| D | Indicates the bearing is part of a duplex (matched) set. |
| P4A | Denotes a high precision tolerance class, exceeding standard ABEC-7 (ISO Class 4) requirements for superior running accuracy. |
| DB | Specifies the back-to-back mounting arrangement, which provides high moment rigidity and is effective for withstanding overturning moments. |
| C | Indicates a moderate preload (Class C), which increases bearing stiffness and minimizes axial and radial runout at operating speeds. |
7010 CD/P4ADBC Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex back-to-back (DB) design creates a rigid bearing system that can withstand significant combined radial and axial loads (Radial Dynamic Load Rating: 10980 lbf, Static: 10800 lbf). This configuration provides excellent resistance to moment loads, ensuring precise shaft positioning.
Precision Performance: Manufactured to P4A tolerance class with tight dimensional control on the bore diameter and outside diameter (tolerance: -0.004mm to 0), this bearing guarantees minimal runout and vibration for high-speed, high-accuracy applications.
High-Speed Capability: The phenolic cage and optimized internal geometry contribute to a high limiting speed of 46,000 rpm. This makes the bearing suitable for high-speed spindle applications.
Material & Lubrication: Constructed from chrome steel for both rings and balls, ensuring high durability and fatigue resistance. The bearing is supplied lubricated, ready for immediate installation and operation within a temperature range of -30°C to 110°C.
7010 CD/P4ADBC Bearing Typical Application Areas
The 7010 CD/P4ADBC is engineered for high-performance applications where precision, speed, and rigidity are critical. Its primary uses include:
- Machine Tool Spindles: For CNC machining centers, grinding spindles, and milling machines requiring high rotational accuracy and rigidity.
- High-Speed Motors: In precision electric spindles and high-frequency motors.
- Precision Instrumentation: For measuring equipment and analytical instruments that demand minimal runout.
- Robotics: In robotic arm joints and precision gearboxes where high moment load capacity is essential.
