7013 ACD/P4AQBCC
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7013 ACD/P4AQBCC
Basic Information
System of measurement
Metric
Weight
1.72 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
25 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
20
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
23400 lbf
Radial static load rating
31500 lbf
Limiting speed
31 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
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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7013 ACD/P4AQBCC Bearing Product Overview & Core Advantages
The 7013 ACD/P4AQBCC is a precision quadruplex angular contact ball bearing designed for applications demanding exceptional rigidity and accuracy. Engineered as a matched set of four bearings in a back-to-back (QBC) arrangement, it excels at handling combined radial and axial loads from both directions. Manufactured to the stringent P4A tolerance class, this bearing offers superior running accuracy, making it ideal for high-precision, high-rigidity spindles and other critical machinery where dimensional stability and reliability are paramount.
7013 ACD/P4AQBCC Bearing Model Code Explained, Specifications & Naming Convention
The model number 7013 ACD/P4AQBCC is decoded as follows:
- 7013: Basic series designation, indicating a metric angular contact ball bearing with a 65mm bore, 100mm OD, and 72mm width.
- A: Denotes a 25° contact angle, optimized for carrying higher axial loads.
- CD: Signifies a Moderate (Class C) preload applied to the bearing set. This preload increases system rigidity and minimizes deflection under load.
- P4A: Indicates a super-precision tolerance class, providing extremely tight dimensional and running accuracy for high-performance applications.
- QBCC: Defines the matched arrangement. "Q" indicates a Quadruplex set (four bearings), and "BCC" specifies the Back-to-Back mounting configuration with specific preload.
7013 ACD/P4AQBCC Bearing Structural Features & Performance Benefits
- Exceptional Rigidity and Load Capacity: The quadruplex back-to-back (QBC) arrangement creates a highly rigid bearing system capable of withstanding significant combined radial and moment loads, as well as axial loads in both directions. The 25° contact angle further enhances axial load carrying capability.
- Precision Performance: Manufactured to P4A super-precision standards, this bearing ensures minimal runout and vibration, which is critical for maintaining accuracy in high-speed machining and precision instrumentation.
- Optimized for High-Speed Operation: The lightweight, robust phenolic resin cage ensures stable operation and guides the balls effectively at the specified limiting speed of 31,000 rpm, reducing friction and heat generation.
- Premium Material Construction: Both the rings and balls are made from high-grade Chrome Steel, providing excellent wear resistance and fatigue life under demanding operating conditions.
7013 ACD/P4AQBCC Bearing Typical Application Areas
This high-precision, high-rigidity bearing is typically employed in:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Gearboxes and High-Frequency Motorized Spindles.
- Advanced Robotics and Automation Equipment.
- Aerospace and Defense instrumentation and control systems.
