7013 CD/HCP4AQBCC
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7013 CD/HCP4AQBCC
Basic Information
System of measurement
Metric
Weight
1.44 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
65 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
100 mm
Outside diameter tolerance
-0.004mm to 0
Width
72 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
20
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
24975 lbf
Radial static load rating
33750 lbf
Limiting speed
36 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Quadruplex Back-to-Back (QBC)
Number of bearings in matched set
4
Universal matching bearing
No (Standard)
Preload
Moderate / Class C
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
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7013 CD/HCP4AQBCC Bearing Product Overview & Core Advantages
The 7013 CD/HCP4AQBCC is a high-precision quadruplex angular contact ball bearing designed for the most demanding applications. This matched set of four bearings, arranged in a Back-to-Back (QBC) configuration, delivers exceptional system rigidity and stability. Engineered to handle combined radial and axial loads simultaneously, it is the ideal solution for machine tool spindles and other high-performance machinery requiring superior accuracy, high-speed capability, and reliable operation under complex loading conditions.
7013 CD/HCP4AQBCC Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CD | Universal matching bearing with a specific preload. In this context, it indicates the bearings are supplied as a pre-matched and preloaded set. |
| HC | Hybrid Ceramic: Signifies the use of ceramic balls with steel rings, offering reduced friction, higher speed potential, and longer service life. |
| P4A | High precision tolerance class exceeding ABEC 7, ensuring ultra-precise running accuracy and minimal rotational runout. |
| QBC | Quadruplex Back-to-Back arrangement. This configuration provides maximum moment stiffness and excellent operational stability. |
| C | Moderate preload class, optimized for high rigidity and high-speed performance. |
7013 CD/HCP4AQBCC Bearing Structural Features & Performance Benefits
- Exceptional Rigidity and Stability: The quadruplex back-to-back arrangement creates a highly rigid bearing system capable of withstanding heavy moment loads and complex forces, making it ideal for applications where shaft deflection must be minimized.
- Superior High-Speed Performance: The combination of a lightweight phenolic cage and hybrid ceramic balls significantly reduces centrifugal forces and operating temperatures, enabling a high limiting speed of 36,000 rpm.
- High Load Capacity: With a 15° contact angle and robust construction, this bearing set is engineered to support significant combined (radial and axial) loads, as reflected in its high dynamic and static load ratings.
- Reduced Friction and Long Life: The ceramic balls are harder, smoother, and lighter than steel, leading to less friction, lower heat generation, and extended bearing service life, especially in high-speed environments.
- Precision Operation: Manufactured to P4A tolerance standards, this bearing ensures minimal vibration and precise rotational accuracy, which is critical for machining and finishing quality.
7013 CD/HCP4AQBCC Bearing Typical Application Areas
This precision bearing set is specifically designed for high-performance machinery, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, engraving, and high-frequency motor spindles.
- High-Speed Automation: Robotics, CNC tool changers, and precision positioning systems.
- Advanced Medical Equipment: Dental handpieces and imaging device rotors.
