7006 CDGB/HCP4A
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
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7006 CDGB/HCP4A Bearing Product Overview & Core Advantages
The 7006 CDGB/HCP4A is a high-precision angular contact ball bearing engineered for applications demanding exceptional accuracy and performance. This single bearing features a 15° contact angle and is designed to accommodate combined loads, primarily handling thrust loads in one direction while supporting significant radial loads. Its core advantages include ultra-high precision (P4A tolerance class), light preload (Class B) for reduced friction and precise rotational accuracy, and high-speed capability enabled by its ceramic balls and phenolic cage. It is universally matchable (SU), allowing for precise axial play or preload adjustment when mounted with other bearings. This bearing is pre-lubricated for immediate use and operates effectively within a temperature range of -30°C to 110°C.
7006 CDGB/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7006 | Basic bearing series and size designation (30mm bore, 55mm OD, 13mm width). |
| C | Specifies a 15° contact angle. |
| DGB | Indicates a Universal Matchable (SU) bearing, designed for precise mounting arrangements. |
| HC | Signifies the use of Hybrid Ceramic components (Ceramic balls with steel rings). |
| P4A | Denotes an ultra-high precision tolerance class, exceeding ABEC 7 standards. |
7006 CDGB/HCP4A Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces friction, increases limiting speed (100,500 rpm), and provides superior resistance to wear and electrical arcing. This makes the bearing ideal for high-speed applications.
Phenolic Resin Cage: The lightweight and robust phenolic cage ensures stable operation at high rotational speeds, contributing to the bearing's overall high-speed performance and low vibration.
Light Preload (Class B): The bearing is supplied with a light preload, which minimizes axial and radial play. This enhances system rigidity, improves rotational accuracy, and reduces noise and vibration during operation.
Precision Engineering (P4A): Manufactured to P4A tolerance class, this bearing guarantees extremely tight dimensional and running accuracy, which is critical for applications requiring the highest levels of precision and repeatability.
Universal Matching (SU): This feature allows for flexible mounting configurations. When used in sets, these bearings can be arranged to achieve specific preload or clearance, optimizing performance for the application's load and speed requirements.
7006 CDGB/HCP4A Bearing Typical Application Areas
The 7006 CDGB/HCP4A is designed for the most demanding high-precision and high-speed machinery. Its typical applications include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Robotics: In robotic arm joints and actuators requiring high accuracy and speed.
- High-Frequency Spindles: Used in PCB drilling and semiconductor manufacturing equipment.
- Advanced Medical Equipment: In dental handpieces and high-speed imaging scanners.
- Aerospace Instrumentation: For gyroscopes, navigation systems, and other critical control mechanisms.
