S7014 ACEGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7014 ACEGA/HCP4A
Basic Information
System of measurement
Metric
Weight
0.59 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
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
22 X 1000 rpm
Lubrication
Grease
Matched arrangement
Single
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
No drawings available at the moment, will be launched soon
Price:
$ 172.08
/ each
In Stock
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S7014 ACEGA/HCP4A Bearing Product Overview & Core Advantages
The S7014 ACEGA/HCP4A is a super-precision angular contact ball bearing engineered for the most demanding high-speed and high-rigidity applications. Its single-row design with a 25° contact angle is optimized to support combined loads, handling significant axial loads in one direction alongside radial loads. Manufactured to an exceptional P4A tolerance class, it guarantees supreme running accuracy, minimal vibration, and enhanced operational reliability. The combination of a phenolic resin cage and ceramic balls significantly reduces centrifugal forces, enabling superior high-speed performance up to 22,000 rpm, making it an ideal choice for advanced machine tool spindles and other precision machinery.
S7014 ACEGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
The model number S7014 ACEGA/HCP4A provides a detailed technical specification. Below is a breakdown of its key suffixes:
- S70: Denotes a super-precision angular contact ball bearing series.
- 14: Indicates a bore diameter of 70 mm (14 x 5 = 70).
- AC: Signifies a 25° contact angle.
- EGA: Specifies the internal clearance/preload. In this context, it indicates an Extra light preload (Class A).
- HCP4A: Defines the tolerance and matching class. P4A is the ultra-precision tolerance class, and the Universal Matchable (SU) designation means two bearings are selectively matched as a set for optimal performance when mounted together.
S7014 ACEGA/HCP4A Bearing Structural Features & Performance Benefits
- High-Speed Capability: The lightweight phenolic resin cage and silicon nitride (Si3N4) ceramic balls work in tandem to reduce rotational mass and inertial forces. This design is critical for achieving the high limiting speed of 22,000 rpm while maintaining stability and minimizing heat generation.
- Exceptional Rigidity and Load Capacity: The 25° contact angle and precision-ground raceways provide high axial and radial stiffness. With a dynamic load rating of 5062 lbf and a static load rating of 3892 lbf, it reliably handles demanding combined loads.
- Ultra-Precision and Low Heat Generation: Manufactured to ABEC 7 / P4A tolerances, this bearing ensures extreme dimensional accuracy and smooth operation. The ceramic balls have a lower coefficient of thermal expansion than steel and are electrically insulating, reducing the risk of thermal seizure and electrical erosion.
- Sealed and Pre-Lubricated: The bearing is sealed and pre-lubricated with high-performance grease, protecting against contamination and providing long-term, maintenance-free operation within a temperature range of -30°C to 110°C.
S7014 ACEGA/HCP4A Bearing Typical Application Areas
The S7014 ACEGA/HCP4A is designed for high-performance applications where speed, precision, and reliability are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: High-accuracy joints and arm assemblies.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and auxiliary power units.
- High-Frequency Motors and Spindles: Motors for PCB drilling and dental handpieces.
