7006 CD/P4ADBC
7000 Series Super Precision Angular Contact Ball Bearings
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7006 CD/P4ADBC Bearing Product Overview & Core Advantages
The 7006 CD/P4ADBC is a precision duplex angular contact ball bearing specifically designed for applications demanding exceptional rotational accuracy and rigidity. This metric bearing features a back-to-back (DB) matched arrangement with a moderate preload (Class C), enabling it to withstand significant combined loads—both radial and axial forces. Manufactured to the stringent P4A tolerance class, it delivers superior running accuracy and is ideal for high-speed, high-precision machinery where reliability is paramount.
7006 CD/P4ADBC Bearing Model Code Explained, Specifications & Naming Convention
- 7006: Basic bearing series, indicating a 30mm bore, 55mm OD, and 26mm width.
- C: Denotes a 15° contact angle, optimized for high-speed operation and moderate axial load capacity.
- D: Indicates the bearing is part of a duplex (matched) set.
- P4A: Specifies the ultra-precision tolerance class, exceeding ABEC 7 standards for exceptional dimensional and running accuracy.
- DB: Defines the back-to-back mounting arrangement, which provides high moment rigidity and excellent stability under complex loading conditions.
- C (in preload context): Signifies a moderate preload for enhanced stiffness and reduced deflection.
7006 CD/P4ADBC Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex back-to-back (DB) design creates a wide, rigid support system, significantly increasing the bearing's ability to handle combined radial and axial loads as well as overturning moments. The moderate preload eliminates internal clearance, ensuring precise shaft positioning and improved system stiffness.
High-Speed Performance: The 15° contact angle and lightweight phenolic resin cage are engineered for high-speed operation, with a limiting speed of 56,000 rpm. This combination reduces centrifugal forces and maintains stability at elevated rotational velocities.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional controls on bore, outside diameter, and width, this bearing guarantees exceptional running accuracy and minimal vibration, which is critical for precision applications.
Material & Lubrication: Constructed from high-grade chrome steel for both rings and balls, ensuring durability and long service life. The bearing is supplied lubricated and is suitable for an operating temperature range of -30°C to 110°C.
7006 CD/P4ADBC Bearing Typical Application Areas
- Machine Tool Spindles: Providing high rigidity and accuracy for milling, grinding, and turning centers.
- High-Speed Precision Spindles: Used in PCB drilling, dental handpieces, and other applications requiring extreme rotational precision.
- Robotic Arms and Precision Gearboxes: Where accurate motion control and high moment load capacity are essential.
- Advanced Pumps and Compressors: For handling high speeds and combined loads reliably.
