7014 ACE/HCP4AH1DT
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7014 ACE/HCP4AH1DT
Basic Information
System of measurement
Metric
Weight
1.11 kg
Tolerance class
P4A
Seal type
Open
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
40 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
25
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
8190 lbf
Radial static load rating
7762 lbf
Limiting speed
29 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Tandem (DT)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Available
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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7014 ACE/HCP4AH1DT Bearing Product Overview & Core Advantages
The 7014 ACE/HCP4AH1DT is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This duplex tandem (DT) arrangement features two bearings preloaded against each other, delivering superior axial rigidity and the ability to handle significant combined loads. Manufactured to P4A tolerance class with a 25° contact angle and ceramic balls, it is engineered for high-speed operation and long-term reliability in precision machinery.
7014 ACE/HCP4AH1DT Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7014 | Basic bearing series, defining the bearing dimensions (70mm bore, 110mm OD, 40mm width). |
| ACE | Internal design code for optimized contact geometry and high-speed performance. |
| HC | Hybrid Ceramic: Signifies the use of ceramic balls for reduced friction, higher speed capability, and non-conductivity. |
| P4A | Tolerance class denoting very high dimensional and running accuracy, superior to ABEC 7. |
| H1 | Preload code indicating a specific level of preload applied to the duplex set for optimal rigidity. |
| DT | Duplex Tandem arrangement. Two bearings are mounted in tandem to primarily increase axial load capacity in one direction. |
7014 ACE/HCP4AH1DT Bearing Structural Features & Performance Benefits
- Superior Rigidity and Load Capacity: The duplex tandem (DT) arrangement with preload (H1) creates an exceptionally rigid bearing system, capable of handling high combined loads (radial and axial). The 25° contact angle is optimized for substantial axial load support.
- Enhanced High-Speed Performance: The combination of hybrid ceramic balls and a lightweight phenolic cage significantly reduces centrifugal forces and friction, enabling a high limiting speed of 29,000 rpm. The open design allows for efficient lubrication management.
- High Precision and Accuracy: Manufactured to a P4A tolerance class with tight bore, outside diameter, and width tolerances, this bearing ensures minimal runout and vibration, which is critical for precision applications.
- Advanced Material Selection: The ceramic balls offer advantages including lower thermal expansion, electrical insulation, and extended service life compared to all-steel designs, especially in high-speed and demanding environments.
7014 ACE/HCP4AH1DT Bearing Typical Application Areas
This high-performance duplex tandem bearing set is ideally suited for applications requiring high speed, high rigidity, and extreme precision, such as:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling and routing machines.
- High-Frequency Motors and Electric Spindles.
- Aerospace Actuation Systems and instrumentation.
