7009 ACEGA/HCP4AH1
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7009 ACEGA/HCP4AH1 Bearing Product Overview & Core Advantages
The 7009 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 (Class A) preload and is manufactured to P4A super-precision tolerance, ensuring minimal runout and superior rotational accuracy. Its ceramic balls and phenolic cage contribute to lower friction, higher limiting speed, and extended service life, making it an ideal solution for high-speed spindles and other precision machinery.
7009 ACEGA/HCP4AH1 Bearing Model Code Explained, Specifications & Naming Convention
- 7009: Basic bearing series with 45mm bore, 75mm OD, 16mm width
- AC: Angular Contact design with 25° contact angle
- EGA: Universal Matchable (SU) bearing, supplied in a set of 2 for precise matching
- HCP4A: Precision class designation (P4A tolerance) with specific internal clearance
- H1: Identifies the specific preload and matching characteristics
7009 ACEGA/HCP4AH1 Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P4A tolerance standards with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional stability and running accuracy.
Advanced Materials: Features ceramic balls that reduce centrifugal forces, lower operating temperatures, and provide electrical insulation. The phenolic resin cage offers excellent strength-to-weight ratio and smooth operation at high speeds.
Optimized Performance: The 25° contact angle and Extra Light preload (Class A) deliver superior high-speed capability with a limiting speed of 46,000 rpm, while maintaining precise axial and radial positioning.
Thermal Stability: Operates effectively within a temperature range of -30°C to 110°C, maintaining performance across varying environmental conditions.
7009 ACEGA/HCP4AH1 Bearing Typical Application Areas
The 7009 ACEGA/HCP4AH1 excels in applications requiring ultra-precision and high-speed operation:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers
- Precision Medical Equipment: Dental handpieces, surgical tools
- Aerospace Components: Gyroscopes, navigation systems
- Semiconductor Manufacturing: Wafer handling robots, precision stages
- High-Speed Motors: Spindle motors, high-frequency applications
