7006 ACEGA/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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7006 ACEGA/P4A Bearing Product Overview & Core Advantages
The 7006 ACEGA/P4A is a single row angular contact ball bearing designed for ultra-precision applications demanding exceptional rotational accuracy and high-speed performance. Manufactured to the stringent P4A tolerance class, this bearing delivers superior running accuracy and dimensional stability. Its 25° contact angle is optimized to support significant combined loads, effectively handling both radial and axial forces. The bearing comes pre-lubricated and is part of a Universal Matchable (SU) set, allowing for flexible mounting configurations in preloaded arrangements to achieve maximum system rigidity and precision.
7006 ACEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 7006 | Basic Bearing Series & Size | Indicates a metric 30mm bore, 55mm OD, 13mm width bearing. |
| AC | Angular Contact | Designed to carry combined radial and axial loads. |
| E | Optimized Internal Design | Features a larger ball complement and optimized raceway geometry for increased load capacity. |
| GA | Preload: Extra Light (Class A) | Specifies the internal preload level, minimizing starting and running torque for high-speed operation. |
| P4A | Tolerance Class | Denotes a super-precision grade with extremely tight tolerances on bore, OD, and width for superior running accuracy. |
7006 ACEGA/P4A Bearing Structural Features & Performance Benefits
High-Precision Construction: The P4A tolerance class ensures minimal runout and vibration, which is critical for applications requiring extreme positional accuracy and smooth operation.
Superior Load Capacity: The E-type design incorporates a full complement of 17 balls and a 25° contact angle, resulting in a high radial dynamic load rating of 1989 lbf and excellent performance under combined loads.
Exceptional High-Speed Capability: The lightweight phenolic resin cage ensures stability and low friction at the limiting speed of 71,500 rpm. The extra light preload (GA) further reduces friction and heat generation.
Material Integrity: Manufactured from high-grade chrome steel for both rings and balls, the bearing offers high hardness, wear resistance, and long-term dimensional stability.
7006 ACEGA/P4A Bearing Typical Application Areas
The 7006 ACEGA/P4A is engineered for the most demanding high-precision, high-speed machinery. Its typical applications include:
- Machine Tool Spindles: For CNC machining centers, grinding spindles, and lathes requiring ultra-precision.
- Precision Robotic Drives: In articulated arms and joints where high rigidity and accuracy are paramount.
- High-Frequency Spindles: Used in PCB drilling, dental drills, and small tool spindles.
- Advanced Medical Equipment: In scanners, centrifuges, and surgical handpieces.
- Aerospace & Defense Systems: For gyroscopes, navigation instruments, and radar equipment.
