7006 ACDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7006 ACDGA/HCP4A
Basic Information
System of measurement
Metric
Weight
0.095 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
30 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
55 mm
Outside diameter tolerance
-0.004mm to 0
Width
13 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
14
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
3105 lbf
Radial static load rating
1721 lbf
Limiting speed
53 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
3
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
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In Stock
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7006 ACDGA/HCP4A Bearing Product Overview & Core Advantages
The 7006 ACDGA/HCP4A is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and performance. Engineered to accommodate combined loads (radial and axial loads simultaneously), this single bearing features a 25° contact angle for optimal axial load capacity. Its P4A tolerance class ensures ultra-precise running accuracy, making it ideal for high-speed spindles and other high-rigidity applications. The use of ceramic balls and a phenolic cage contributes to lower friction, higher limiting speeds, and extended service life, establishing it as a top-tier solution for mission-critical machinery.
7006 ACDGA/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). |
| AC | Angular Contact design, optimized for combined loads. |
| DGA | Specific internal design and contact angle (25°). |
| H | Indicates the set is Universal Matchable (SU), allowing for flexible mounting arrangements in sets of 2 or more bearings. |
| C | Specifies the Extra light preload (Class A) for minimal friction and high-speed operation. |
| P4A | Denotes an ultra-high precision tolerance class, exceeding ABEC-7 standards. |
7006 ACDGA/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design with a 25° contact angle provides excellent resistance to combined loads, ensuring stable and rigid support for spindles and shafts.
- Superior High-Speed Performance: The combination of ceramic balls (Si3N4), which are lighter and harder than steel, and a lightweight phenolic resin cage significantly reduces centrifugal forces, enabling a high limiting speed of 53,000 rpm.
- Precision Engineering: Manufactured to a P4A tolerance class with tight dimensional tolerances on the bore, outside diameter, and width, this bearing guarantees exceptional running accuracy and minimal vibration.
- Universal Matching (SU): Designed as a Universal Matchable bearing, it can be mounted in any combination (back-to-back, face-to-face, or tandem) with other bearings from the same lot to create a pre-loaded set, offering design flexibility and simplified logistics.
7006 ACDGA/HCP4A Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, semiconductor manufacturing equipment.
- High-Frequency Motors: Spindles for routers and high-speed electric motors.
- Medical Equipment: Dental handpieces and laboratory centrifuges.
- Aerospace & Defense: Gyroscopes, radar systems, and other critical guidance systems.
