7007 ACEGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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7007 ACEGA/HCP4A Bearing Product Overview & Core Advantages
The 7007 ACEGA/HCP4A is a high-precision angular contact ball bearing engineered for applications demanding exceptional accuracy and performance. Designed as a universally matchable single bearing, it can be paired with another identical bearing to form a pre-configured duplex set, offering superior rigidity and operational stability. Its core advantages include the ability to handle combined radial and axial loads simultaneously, facilitated by a 25° contact angle. Manufactured to an ultra-precise P4A tolerance class and featuring a ceramic ball and phenolic cage construction, it is ideally suited for high-speed operation and scenarios requiring the highest levels of reliability and dimensional stability.
7007 ACEGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7007 | Basic bearing series, indicating a metric bore diameter of 35 mm, outside diameter of 62 mm, and width of 14 mm. |
| AC | Angular Contact design with a 25° contact angle. |
| E | Optimized internal design for enhanced performance and load capacity. |
| GA | Indicates a universally matchable (Universal Matchable SU) bearing supplied with an Extra light (Class A) preload. Two bearings are supplied as a matched set. |
| HC | Hybrid Ceramic, signifying the use of ceramic balls with steel rings. |
| P4A | The tolerance class, denoting ultra-high precision for both dimensional and running accuracy, exceeding ABEC 7 standards. |
7007 ACEGA/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces friction, heat generation, and wear. This construction allows for higher limiting speeds, extended service life, and is less susceptible to lubrication failure, making it ideal for high-speed applications.
- Phenolic Cage: The lightweight and robust phenolic resin cage ensures excellent dimensional stability at high rotational speeds, contributing to smooth operation and reduced vibration.
- Universal Matchability & Preload: As a universally matchable bearing supplied in a pre-loaded set (GA suffix), it simplifies installation and guarantees optimal bearing rigidity and rotational accuracy from the outset, eliminating the need for complex preload adjustments.
- High-Precision Engineering: Manufactured to P4A tolerance class with tight bore, outside diameter, and width tolerances, this bearing ensures minimal runout and superior positional accuracy in the most demanding precision machinery.
- Superior Load Capacity: The 25° contact angle and optimized internal geometry provide high radial dynamic load rating (2498 lbf) and static load rating (1418 lbf), enabling reliable performance under combined loads.
7007 ACEGA/HCP4A Bearing Typical Application Areas
The 7007 ACEGA/HCP4A is specified for high-performance applications where speed, precision, and reliability are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy positioning systems.
- Aerospace & Defense Systems: Gyroscopes, navigation instruments, and auxiliary power units.
- Medical Equipment: High-speed dental handpieces and laboratory centrifuges.
- Semiconductor Manufacturing: Wafer handling robots and precision stages.
