7007 ACEGA/HCP4AH1
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7007 ACEGA/HCP4AH1
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
7.144 mm
Ball quantity
17
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
2498 lbf
Radial static load rating
1418 lbf
Limiting speed
56 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
2
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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7007 ACEGA/HCP4AH1 Bearing Product Overview & Core Advantages
The 7007 ACEGA/HCP4AH1 is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This single bearing features an Extra Light (A) preload and a 25° contact angle, optimized to handle combined radial and axial loads simultaneously. Manufactured to the stringent P4A tolerance class, it guarantees superior running accuracy and rotational stability. Its universal matchable (SU) design allows for flexible mounting in duplex sets, making it an ideal choice for high-speed spindles and other precision machinery where rigidity and minimal runout are critical.
Model Code Breakdown
| 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. |
| EGA | Specifies the Extra Light (A) preload and Universal Matchable (SU) designation. |
| HC | Indicates the use of a Phenolic (Polyamide) cage. |
| P4A | Denotes the high-precision tolerance class, superior to ABEC-7. |
| H | Signifies the bearing is lubricated from the factory. |
7007 ACEGA/HCP4AH1 Bearing Structural Features & Performance Benefits
- High-Speed Capability: The combination of a lightweight phenolic cage and ceramic balls significantly reduces centrifugal forces, enabling a high limiting speed of 56,000 rpm. This makes it suitable for very high-speed applications.
- Rigidity and Accuracy: The 25° contact angle and extra light preload provide high axial rigidity and precise shaft positioning, minimizing deflection under load. The P4A tolerance class ensures exceptional running accuracy.
- Advanced Material Composition: The use of ceramic (Si3N4) balls offers advantages such as reduced weight, lower friction, and non-conductivity, which helps in mitigating electrical erosion. The phenolic cage is ideal for high-speed operation due to its excellent strength-to-weight ratio and compatibility with various lubricants.
- Optimized Load Capacity: Engineered to handle combined loads, this bearing provides a dynamic load rating of 2498 lbf and a static load rating of 1418 lbf, ensuring reliable performance under demanding conditions.
7007 ACEGA/HCP4AH1 Bearing Typical Application Areas
This precision bearing is designed for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- Medical Equipment: Dental handpieces and high-speed centrifuges.
- Aerospace Systems: Gyroscopes, navigation instruments, and auxiliary power units.
- High-Frequency Motors and Spindles: Where extreme rotational speeds and accuracy are required.
