S7010 ACE/HCP4AQBCA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7010 ACE/HCP4AQBCA
Basic Information
System of measurement
Metric
Weight
0.93 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
50 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
80 mm
Outside diameter tolerance
-0.004mm to 0
Width
64 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
21
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
8775 lbf
Radial static load rating
9000 lbf
Limiting speed
46 X 1000 rpm
Lubrication
Grease
Matched arrangement
Quadruplex Back-to-Back (QBC)
Number of bearings in matched set
4
Universal matching bearing
No (Standard)
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
In Stock
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S7010 ACE/HCP4AQBCA Bearing Product Overview & Core Advantages
The S7010 ACE/HCP4AQBCA is a precision quadruplex matched set of angular contact ball bearings designed for the most demanding high-performance applications. This metric bearing set features a back-to-back (QBC) arrangement, providing exceptional system rigidity and the ability to withstand combined loads (radial and axial) from both directions simultaneously. Manufactured to ABEC 7 / P4A tolerance class with an extra light preload, it delivers superior running accuracy, making it ideal for high-speed spindles and other machinery requiring maximum precision and reliability.
S7010 ACE/HCP4AQBCA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7010 | Basic bearing series and size designation (50mm bore, 80mm OD). |
| ACE | Indicates a 25° contact angle and specific internal design optimized for high speed and rigidity. |
| HC | Signifies the use of Hybrid Ceramic components (Ceramic balls with steel rings). |
| P4A | Denotes a high-precision tolerance class (equivalent to ABEC 7), ensuring minimal runout and vibration. |
| QBC | Specifies the bearing arrangement: Quadruplex (4 bearings) matched set in a Back-to-Back configuration. |
S7010 ACE/HCP4AQBCA Bearing Structural Features & Performance Benefits
- Unmatched Rigidity & Load Capacity: The quadruplex back-to-back (QBC) arrangement creates an extremely stiff bearing system, capable of handling heavy combined radial and thrust loads from any direction. This configuration provides superior moment load resistance compared to single bearings or duplex pairs.
- High-Speed & Thermal Stability: The combination of a lightweight phenolic cage, hybrid ceramic balls (lower density reduces centrifugal force), and a 25° contact angle enables very high limiting speeds (46,000 rpm). The back-to-back arrangement also allows for effective thermal expansion management.
- Precision & Long Service Life: Manufactured to P4A tolerances with an extra light preload, this set guarantees precise shaft positioning and smooth, quiet operation. The sealed design and pre-lubrication protect against contamination, ensuring long-term reliability and consistent performance.
- Superior Material Selection: The use of ceramic balls provides advantages including reduced friction, electrical insulation, and operation with minimal lubrication, further enhancing the bearing's suitability for high-speed applications.
S7010 ACE/HCP4AQBCA Bearing Typical Application Areas
This precision matched bearing set is engineered for high-end industrial applications where speed, accuracy, and rigidity are paramount. Key application areas include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, semiconductor manufacturing equipment.
- High-Frequency Motors: Spindles for routers and other high-RPM machinery.
- Advanced Robotics: Joints and actuators requiring high stiffness and precision.
