7013 CDGB/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7013 CDGB/HCP4A Bearing Product Overview & Core Advantages
The 7013 CDGB/HCP4A is a single-row angular contact ball bearing engineered for high-precision and high-speed applications. This P4A super-precision bearing features a 15° contact angle, ceramic balls, and a phenolic cage, delivering exceptional rotational accuracy and rigidity. Its Universal Matchable (SU) designation allows for flexible mounting in preloaded sets to achieve optimal system stiffness. The bearing is pre-lubricated and operates efficiently within a temperature range of -30°C to 110°C, making it ideal for demanding machinery requiring superior performance under combined radial and axial loads.
7013 CDGB/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
- 7013: Basic bearing series and size designation (65mm bore, 100mm OD, 18mm width).
- CD: Universal Matchable (SU) bearing designed for duplex mounting. "C" indicates specific internal geometry for universal pairing, and "D" signifies a Light preload (Class B).
- GB: Combination code indicating Ceramic (Si3N4) balls and a Phenolic (resin) cage.
- HC: Indicates the use of a High-Grade, High-Temperature Synthetic Hydrocarbon Lubricant.
- P4A: Denotes a super-precision tolerance class stricter than ABEC 7, with enhanced running accuracy for spindle applications.
7013 CDGB/HCP4A Bearing Structural Features & Performance Benefits
High-Speed & High-Rigidity Performance: The combination of a lightweight phenolic cage and low-density ceramic balls reduces centrifugal forces, enabling a high limiting speed of 24,000 rpm. The 15° contact angle and light preload provide high axial and radial rigidity, minimizing deflection under load.
Superior Load Capacity & Longevity: With a dynamic load rating of 9360 lbf and a static load rating of 8438 lbf, this bearing reliably handles combined loads. Ceramic balls offer superior wear resistance, lower friction, and extended service life compared to steel balls.
Precision & Thermal Stability: Manufactured to P4A tolerance class, it ensures minimal runout and vibration. The phenolic cage provides excellent dimensional stability and operates effectively at high temperatures.
7013 CDGB/HCP4A Bearing Typical Application Areas
This bearing is specifically designed for high-performance applications, including:
- Machine Tool Spindles
- High-Speed Machining Centers
- Precision Grinding Spindles
- High-Frequency Motor Spindles
- Aerospace & Defense Positioning Systems
