7006 CDGA/HCP4AH
Hybrid Ceramic Super Precision Bearings
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7006 CDGA/HCP4AH Bearing Product Overview & Core Advantages
The 7006 CDGA/HCP4AH is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. As a single bearing with an extra light preload (Class A), it delivers smooth operation and minimal rotational resistance. Its 15° contact angle is optimized for handling combined loads, efficiently supporting both radial and axial forces. Manufactured to the stringent P4A tolerance class, this bearing ensures superior running accuracy and dimensional stability, making it an ideal choice for high-speed spindles and other precision machinery where reliability is paramount.
7006 CDGA/HCP4AH 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. |
| DG | Indicates the bearing is part of a Universal Matchable (SU) set, allowing for precise preload control when mounted with other matched bearings. |
| A | Denotes an extra light preload (Class A). |
| HC | Refers to the use of Hybrid Ceramic components, specifically ceramic balls. |
| P4A | Specifies the high-precision tolerance class, exceeding standard ABEC 7/ISO P4 levels for superior accuracy. |
7006 CDGA/HCP4AH Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls (Si3N4) significantly reduces friction and wear. This construction enables higher limiting speeds (up to 100,500 rpm), lower operating temperatures, and extended service life compared to all-steel bearings.
Phenolic Resin Cage: The lightweight and robust phenolic cage provides excellent dimensional stability and guidance at high speeds, contributing to smooth and quiet operation.
Universal Matching & Preload: As a Universal Matchable (SU) bearing, it can be paired with other identical bearings in a set (typically 3) to achieve a defined preload without selective mounting. The extra light preload (Class A) minimizes friction while ensuring high system rigidity and precise rotational accuracy.
High-Precision Performance: Manufactured to P4A tolerance class with tight dimensional controls on bore, outside diameter, and width, this bearing guarantees exceptional running accuracy and is suitable for applications with minimal runout requirements.
7006 CDGA/HCP4AH Bearing Typical Application Areas
The 7006 CDGA/HCP4AH is engineered for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and rotary actuators requiring high accuracy and rigidity.
- High-Frequency Motors and Spindles: Applications demanding extreme rotational speeds and low heat generation.
- Medical and Dental Equipment: Surgical handpieces and diagnostic scanners.
- Aerospace Instrumentation: Gyroscopes and navigation systems.
