7014 ACE/HCP4ALDGA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7014 ACE/HCP4ALDGA
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
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
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7014 ACE/HCP4ALDGA Bearing Product Overview & Core Advantages
The 7014 ACE/HCP4ALDGA is a high-precision angular contact ball bearing engineered for demanding applications. As a universal matchable (SU) bearing supplied in a pre-set pair, it delivers exceptional rotational accuracy and rigidity. Its core advantage lies in its ability to accommodate combined loads (radial and axial) simultaneously with high reliability. The combination of a ceramic ball material and P4A super-precision tolerance ensures superior performance in high-speed and thermally stable environments, making it an ideal choice for high-rigidity and high-reliability spindles and systems.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7014 | Basic bearing series and size designation (70mm Bore, 110mm OD, 40mm Width). |
| ACE | 25° contact angle, Extra light (A) preload, and Enhanced grinding for superior running accuracy. |
| HC | Hybrid Ceramic: Signifies the use of ceramic balls for reduced friction, higher speed capability, and non-conductive properties. |
| P4A | The tolerance class, denoting super-precision levels for both dimensional and running accuracy, tighter than ABEC 7. |
| LDGA | Internal design code related to the cage and lubrication. The phenolic cage is lightweight and suitable for high-speed operation. |
7014 ACE/HCP4ALDGA Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The use of ceramic balls with a steel ring significantly reduces centrifugal forces, lowers operating temperature, and allows for a higher limiting speed (29,000 rpm). This construction also provides electrical insulation and longer service life.
- Super-Precision P4A Tolerance: Manufactured to the tightest dimensional and running accuracy standards, ensuring minimal vibration and exceptional positional accuracy for precision machining and instrumentation.
- Universal Match (SU) Design: The two bearings in the set are universally matchable, allowing for flexible mounting arrangements (DB, DF, DT) to achieve the desired preload and stiffness without selective assembly.
- Optimized Cage & Lubrication: The lightweight phenolic cage ensures stability at high speeds. The bearing is pre-lubricated for immediate operation within a wide temperature range of -30°C to 110°C.
- High Load Capacity: With a 25° contact angle and robust design, this bearing offers excellent capacity for combined radial and axial loads, providing high rigidity in the application.
7014 ACE/HCP4ALDGA Bearing Typical Application Areas
This bearing is specifically designed for high-performance applications where speed, precision, and rigidity are critical. Key industries and equipment include:
- Machine Tool Spindles: High-speed CNC machining centers, grinding spindles, and milling spindles.
- Precision Instrumentation: High-resolution measuring devices and coordinate measuring machines (CMM).
- High-Frequency Motors & Spindles: Electric motor spindles and applications requiring low vibration and high rotational accuracy.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other precision rotational mechanisms.
