S7014 ACD/PA9AQBCC
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7014 ACD/PA9AQBCC
Basic Information
System of measurement
Metric
Weight
2.42 kg
Tolerance class
PA9A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
70 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
110 mm
Outside diameter tolerance
-0.004mm to 0
Width
80 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
12.7 mm
Ball quantity
19
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
28575 lbf
Radial static load rating
38925 lbf
Limiting speed
22 X 1000 rpm
Lubrication
Grease
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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S7014 ACD/PA9AQBCC Bearing Product Overview & Core Advantages
The S7014 ACD/PA9AQBCC is a precision quadruplex matched bearing set designed for applications demanding exceptional rigidity and accuracy. This metric angular contact ball bearing features a Quadruplex Back-to-Back (QBC) arrangement, providing superior stability and the ability to handle significant combined loads (radial and axial). With its PA9A tolerance class and moderate preload (Class C), it is engineered for high-precision, high-rigidity applications such as machine tool spindles, ensuring reliable performance in demanding operational environments.
S7014 ACD/PA9AQBCC Bearing Model Code Explained, Specifications & Naming Convention
The model number S7014 ACD/PA9AQBCC provides detailed technical specifications:
- S7014: Basic bearing series and size designation (70mm bore, 110mm OD).
- A: 25-degree contact angle, optimized for carrying axial loads.
- CD: Indicates a matched set with specific preload and universal matching.
- PA9A: Denotes an ultra-precision tolerance class for minimal runout and maximum rotational accuracy.
- QBCC: Specifies a Quadruplex Back-to-Back (QBC) arrangement of four bearings, providing extremely high system rigidity.
S7014 ACD/PA9AQBCC Bearing Structural Features & Performance Benefits
- Exceptional Rigidity: The Quadruplex Back-to-Back (QBC) arrangement of four bearings creates an extremely stiff bearing system, crucial for minimizing deflection under heavy combined loads.
- High Load Capacity: Engineered with a 25-degree contact angle and robust construction to handle substantial radial and bidirectional axial loads simultaneously.
- Precision Performance: The PA9A tolerance class ensures ultra-precise dimensions and minimal runout, which is vital for applications requiring high rotational accuracy.
- Optimized for High Speeds: The lightweight phenolic cage and grease lubrication contribute to stable operation at the specified limiting speed of 22,000 rpm.
- Durability and Reliability: Manufactured from chrome steel for both rings and balls, this bearing offers excellent wear resistance and a long operational life in a temperature range of -30°C to 110°C.
S7014 ACD/PA9AQBCC Bearing Typical Application Areas
This high-precision, high-rigidity bearing set is ideally suited for:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Industrial Pumps and Compressors
- High-Speed Automation and Robotics
- Aerospace and Defense Positioning Systems
