S7016 ACEGB/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7016 ACEGB/P4A
Basic Information
System of measurement
Metric
Weight
0.9 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
80 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
125 mm
Outside diameter tolerance
-0.004mm to 0
Width
22 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
25
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
7312 lbf
Radial static load rating
5962 lbf
Limiting speed
28 X 1000 rpm
Lubrication
Grease
Matched arrangement
Single
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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S7016 ACEGB/P4A Bearing Product Overview & Core Advantages
The S7016 ACEGB/P4A is a super-precision angular contact ball bearing designed for applications demanding the highest levels of accuracy and performance. Engineered to a P4A tolerance class, this bearing excels in high-speed and high-rigidity scenarios. Its 25° contact angle and Universal Matchable (SU) design allow it to handle significant combined loads—both radial and axial—simultaneously, making it an ideal choice for critical spindle assemblies and precision machinery where uncompromising reliability is required.
S7016 ACEGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| S7016 | Super-Precision Bearing Series | Denotes a bearing designed for ultra-high precision and speed applications. |
| AC | 25° Contact Angle | Optimized for handling high axial loads in combination with radial loads. |
| EGB | Optimized Internal Geometry & Light Preload (Class B) | Enhances running accuracy, reduces noise and vibration, and ensures consistent performance under high speeds. |
| P4A | Tolerance Class (Equivalent to ABEC 7) | Guarantees extremely tight dimensional and running accuracy for superior performance. |
S7016 ACEGB/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The single-row design with a 25° contact angle and optimized internal geometry provides excellent rigidity, supporting substantial combined loads.
- Superior High-Speed Performance: The phenolic resin cage offers low weight and excellent sliding properties, contributing to a high limiting speed of 28,000 rpm. The standard grease lubrication is formulated for stable operation at these extreme velocities.
- Exceptional Precision: Manufactured to P4A tolerances with a light preload, this bearing ensures minimal runout and superior rotational accuracy, which is critical for applications like machine tool spindles.
- Sealed and Lubricated for Life: The sealed design protects against contamination, while the factory-applied grease provides long-term, maintenance-free operation within the specified temperature range of -30°C to 110°C.
S7016 ACEGB/P4A Bearing Typical Application Areas
The S7016 ACEGB/P4A is ideally suited for high-performance machinery where precision and speed are paramount. Key applications include:
- Machine Tool Spindles: For CNC machining centers, grinders, and lathes requiring high rotational accuracy and rigidity.
- High-Speed Motors and Spindles: Used in electric motors, precision spindles, and other equipment operating at very high RPM.
- Precision Robotics: Critical for robotic arm joints and actuators that demand high stiffness and low friction.
- Aerospace and Defense Systems: In gyroscopes, navigation systems, and other instrumentation requiring reliable performance under demanding conditions.
