7013 CE/P4AQBCA
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7013 CE/P4AQBCA
Basic Information
System of measurement
Metric
Weight
1.73 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
8.731 mm
Ball quantity
25
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
12150 lbf
Radial static load rating
13950 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
Extra light / Class A
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
Price available upon request.
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7013 CE/P4AQBCA Bearing Product Overview & Core Advantages
The 7013 CE/P4AQBCA is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and rigidity. This matched quadruplex set in a back-to-back (QBC) arrangement is engineered to handle combined loads, providing superior stability and moment load capacity. Its P4A tolerance class ensures ultra-precise running accuracy, making it ideal for high-speed spindles and other precision machinery where high rigidity and minimal runout are critical.
7013 CE/P4AQBCA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7013 | Basic bearing series and size designation (65mm bore, 100mm OD, 72mm width). |
| CE | High-precision, universal match bearing. Allows for flexible mounting arrangements. |
| P4A | Super precision tolerance class, exceeding ABEC 7/ISO P4 standards, with enhanced running accuracy requirements. |
| QBC | Quadruplex Back-to-Back arrangement. A pre-matched set of four bearings mounted back-to-back to withstand heavy combined loads and provide maximum system rigidity. |
7013 CE/P4AQBCA Bearing Structural Features & Performance Benefits
- Superior Rigidity and Load Capacity: The quadruplex back-to-back configuration creates an exceptionally stiff bearing system, capable of supporting high radial loads, axial loads in both directions, and significant moment loads. The 15° contact angle is optimized for high-speed operation while maintaining good axial load capacity.
- High-Speed Performance: The lightweight phenolic resin cage ensures smooth operation and reduced centrifugal forces, contributing to the high limiting speed of 31,000 rpm. The bearings are pre-lubricated for immediate operation.
- Precision Engineering: Manufactured to a P4A tolerance class with tight dimensional tolerances on the bore, outside diameter, and width. This guarantees precise shaft positioning, reduced vibration, and enhanced operational accuracy.
- Durable Construction: Made from high-grade chrome steel for both rings and balls, ensuring long service life and consistent performance under demanding conditions.
7013 CE/P4AQBCA Bearing Typical Application Areas
This bearing is specifically designed for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, precision grinding, and other high-accuracy machining operations.
- High-Frequency Motors: Where minimal runout and high rotational accuracy are required.
- Aerospace and Defense Systems: Gyroscopes, radar systems, and other critical rotating assemblies.
