S7014 ACDGD/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7014 ACDGD/P4A
Basic Information
System of measurement
Metric
Weight
0.61 kg
Tolerance class
P4A
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
20 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
10980 lbf
Radial static load rating
9900 lbf
Limiting speed
22 X 1000 rpm
Lubrication
Grease
Matched arrangement
Single
Number of bearings in matched set
4
Universal matching bearing
Universal Matchable (SU)
Preload
Heavy / Class D
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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S7014 ACDGD/P4A Bearing Product Overview & Core Advantages
The S7014 ACDGD/P4A is a super-precision angular contact ball bearing designed for applications demanding the highest levels of accuracy, rigidity, and speed. As a single bearing from a universally matchable set, it excels at supporting combined loads—simultaneously handling high radial loads and thrust loads in one direction. Its P4A tolerance class and heavy preload (Class D) ensure exceptional running accuracy and system stability, making it ideal for high-performance spindles and other precision machinery where minimal deflection is critical.
S7014 ACDGD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| AC | Angular Contact design with a 25° contact angle for optimal thrust capacity. |
| DGD | Duplex arrangement with Heavy Preload (Class D), providing maximum rigidity. |
| P4A | Super-precision tolerance class, exceeding ABEC 7/ISO P4 standards for superior running accuracy. |
S7014 ACDGD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The heavy preload (Class D) and robust construction significantly reduce axial and radial play, resulting in superior system stiffness and damping characteristics, which is crucial for high-precision machining.
- Superior Load Capacity: The 25° contact angle and optimized internal geometry provide excellent performance under combined radial and axial loads.
- High-Speed Capability: The lightweight, durable phenolic resin cage ensures stable operation and low friction at the high limiting speed of 22,000 rpm, even under preload.
- Precision & Universal Matching: Manufactured to P4A tolerances, this bearing ensures minimal runout. As a Universal Matchable (SU) bearing, it can be paired with others in any combination (DB, DF, DT) without pre-selection, simplifying installation and inventory.
- Optimized Material: Components made from high-grade chrome steel offer excellent wear resistance and fatigue life.
S7014 ACDGD/P4A Bearing Typical Application Areas
This bearing is engineered for the most demanding high-precision and high-speed applications, including:
- Machine Tool Spindles: CNC machining centers, grinding spindles, and milling spindles.
- Precision Rotary Systems: High-frequency motors, robotics, and rotary tables.
- Aerospace & Defense Systems: Gyroscopes, radar equipment, and navigation systems.
