7014 ACEGA/HCP4AH1
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7014 ACEGA/HCP4AH1
Basic Information
System of measurement
Metric
Weight
0.56 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
20 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
5062 lbf
Radial static load rating
3892 lbf
Limiting speed
29 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
3
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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In Stock
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7014 ACEGA/HCP4AH1 Bearing Product Overview & Core Advantages
The 7014 ACEGA/HCP4AH1 is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. Engineered with ceramic balls and manufactured to P4A tolerance class, this bearing delivers superior speed capabilities, reduced friction, and extended service life. Its 25° contact angle is optimized to handle significant combined loads—both radial and axial—making it an ideal solution for high-rigidity, high-speed spindle systems. The bearing is universally matchable (SU), allowing for precise preload configuration when mounted in sets, which is critical for achieving optimal system stiffness and rotational accuracy.
7014 ACEGA/HCP4AH1 Bearing Model Code Explained, Specifications & Naming Convention
| 7014 | Basic designation: 70mm bore, 110mm OD, 20mm width series. |
| AC | Angular Contact design with a 25° contact angle. |
| EGA | Universal Matchable (SU) bearing designed for extra light preload (Class A) when mounted in sets. |
| HCP4A | High-Precision specification: P4A tolerance class for exceptional dimensional and running accuracy. |
| H1 | Indicates a set of 3 bearings matched to specific preload requirements. |
7014 ACEGA/HCP4AH1 Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Design: The combination of chrome steel rings and silicon nitride (Si3N4) ceramic balls significantly reduces centrifugal forces, lowers operating temperature, and enables higher limiting speeds (29,000 rpm). This hybrid construction also provides superior electrical resistance and longer lubrication life.
- Phenolic Resin Cage: The lightweight and robust phenolic cage ensures stable operation at high speeds, offering excellent strength-to-weight ratio and compatibility with various lubricants.
- Precision Engineering: Manufactured to ABEC 7 / P4A precision class with tight dimensional tolerances on bore, outside diameter, and width, ensuring consistent performance and ease of installation in high-accuracy assemblies.
- Universal Matching Capability: As a Universal Matchable (SU) bearing, the 7014 ACEGA/HCP4AH1 can be mounted in any combination (back-to-back, face-to-face, or tandem) with other SU-coded bearings from the same batch, providing design flexibility for achieving specific preload and stiffness requirements.
7014 ACEGA/HCP4AH1 Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, CNC milling, and grinding spindles requiring high rigidity and thermal stability.
- Precision Robotics: Articulated arms and high-precision joints where accuracy and repeatability are critical.
- Aerospace & Defense: Gyroscopes, radar systems, and auxiliary power units (APUs) demanding reliability in extreme conditions.
- Medical Equipment: Dental handpieces, surgical drills, and CT scanner gantries that require smooth, quiet, and precise rotation.
- High-Frequency Motors: Spindles for PCB drilling and small motor applications where ceramic balls reduce electrical erosion.
