7007 ACD/P4ADGC
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7007 ACD/P4ADGC
Basic Information
System of measurement
Metric
Weight
0.31 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
28 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
5445 lbf
Radial static load rating
4050 lbf
Limiting speed
56 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Moderate / Class C
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 157.44
/ each
In Stock
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7007 ACD/P4ADGC Bearing Product Overview & Core Advantages
The 7007 ACD/P4ADGC is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. As a universal matchable (SU) bearing supplied in a pre-lubricated, preloaded pair, it excels at handling combined loads—simultaneously supporting significant radial and axial loads in both directions. Its P4A tolerance class ensures ultra-precise running accuracy, making it ideal for high-speed, high-reliability spindles and precision machinery where minimal runout and maximum stiffness are critical.
7007 ACD/P4ADGC Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with a 25° contact angle, optimized for high axial load capacity and rigidity. |
| P4A | Indicates a super-precision tolerance class with enhanced running accuracy and dimensional stability, exceeding standard ABEC 7/ISO P4 levels. |
| DGC | Signifies a universal matchable (SU) bearing pair with a Moderate (Class C) preload. This arrangement provides optimal stiffness and rotational accuracy without requiring further adjustment during installation. |
7007 ACD/P4ADGC Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The 25° contact angle and universal matching of two bearings create a highly rigid system capable of withstanding heavy combined radial and axial loads from both directions.
- Super-Precision Performance: Manufactured to P4A tolerance class, this bearing guarantees minimal runout and vibration, which is essential for achieving superior surface finishes and positioning accuracy in precision equipment.
- Optimized High-Speed Operation: The lightweight phenolic cage ensures stable operation and reduced centrifugal forces, contributing to the high limiting speed of 56,000 rpm. The phenolic material also offers excellent performance under lubrication starvation.
- Ready-to-Install Solution: The bearing is supplied as a pre-lubricated, preloaded pair (DGC), simplifying installation and ensuring immediate, optimal performance without the need for complex setup or initial lubrication.
7007 ACD/P4ADGC Bearing Typical Application Areas
This bearing is engineered for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Grinding Spindles: Internal and external grinding machines.
- High-Frequency Motors: Spindles for PCB drilling and routing.
- Medical Equipment: High-speed centrifuges and dental handpieces.
- Robotics: Precision joints and arm actuators requiring high rigidity.
