7007 ACDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7007 ACDGA/HCP4A
Basic Information
System of measurement
Metric
Weight
0.13 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
35 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
62 mm
Outside diameter tolerance
-0.004mm to 0
Width
14 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
16
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
3330 lbf
Radial static load rating
2025 lbf
Limiting speed
56 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
No drawings available at the moment, will be launched soon
Price:
$ 130.72
/ each
In Stock
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7007 ACDGA/HCP4A Bearing Product Overview & Core Advantages
The 7007 ACDGA/HCP4A is a single row angular contact ball bearing engineered for applications demanding the highest levels of precision and speed. This metric bearing is distinguished by its P4A super precision tolerance class and ceramic ball construction, enabling exceptional performance in high-speed spindle applications. Its 25° contact angle is optimized to support significant axial loads in one direction while also handling radial loads, making it ideal for combination load scenarios. The phenolic cage and universal matchable (SU) designation ensure smooth operation and simplified, precise bearing arrangement assembly.
7007 ACDGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7007 | Basic bearing series, indicating a 35mm bore, 62mm OD, and 14mm width. |
| AC | Angular Contact design with a 25° contact angle. |
| DGA | Specific internal design and geometry for high-speed, high-precision applications. |
| H | Indicates the bearing is supplied lubricated. |
| C | Indicates the use of ceramic (Si3N4) balls. |
| P4A | Denotes a super precision tolerance class, tighter than ABEC 7. |
7007 ACDGA/HCP4A Bearing Structural Features & Performance Benefits
- High-Speed Capability: The combination of ceramic balls and a lightweight phenolic resin cage significantly reduces centrifugal forces and friction, enabling a high limiting speed of 56,000 rpm. This makes it a premier high-speed bearing.
- Precision & Rigidity: Manufactured to P4A tolerance standards with an extra light preload (Class A), this bearing provides exceptional running accuracy, minimal vibration, and high system rigidity for precise positioning.
- Reduced Thermal Expansion: Ceramic balls have a lower coefficient of thermal expansion than steel, helping to maintain preload and accuracy over a wider temperature range (-30°C to 110°C).
- Universal Matching: The Universal Matchable (SU) feature allows bearings to be mounted in tandem, back-to-back, or face-to-face arrangements without selective assembly, simplifying installation and ensuring optimal performance in matched sets.
7007 ACDGA/HCP4A Bearing Typical Application Areas
This high-precision angular contact bearing is ideally suited for advanced machinery requiring maximum rotational accuracy and speed.
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling and routing spindles.
- High-Frequency Motors: Spindles for CNC routers and engraving machines.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other precision instrumentation.
