S7013 ACEGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7013 ACEGA/P4A
Basic Information
System of measurement
Metric
Weight
0.45 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
65 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
100 mm
Outside diameter tolerance
-0.004mm to 0
Width
18 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
8.731 mm
Ball quantity
25
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
4388 lbf
Radial static load rating
3285 lbf
Limiting speed
36 X 1000 rpm
Lubrication
Grease
Matched arrangement
Single
Number of bearings in matched set
4
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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S7013 ACEGA/P4A Bearing Product Overview & Core Advantages
The S7013 ACEGA/P4A is a super-precision angular contact ball bearing designed for the most demanding high-speed and high-rigidity applications. As a single bearing with a 25° contact angle and extra light preload (Class A), it delivers exceptional rotational accuracy and stability. Its primary advantage lies in its ability to handle combined loads—significant radial and axial loads in one direction—making it an ideal choice for machine tool spindles and other precision machinery where uncompromising performance is critical.
S7013 ACEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
The model number S7013 ACEGA/P4A provides detailed technical specifications through its suffixes:
- S: Denotes a super-precision bearing.
- 7013: Standard size designation (65mm bore, 100mm OD, 18mm width).
- AC: Angular Contact design with a 25° contact angle.
- E: Optimized internal design for high-speed operation.
- GA: Indicates a specific preload group (Extra light / Class A).
- P4A: Specifies a tolerance class superior to ABEC 7, ensuring extreme dimensional and running accuracy.
S7013 ACEGA/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The 25° contact angle and robust construction provide high resistance to deformation under load, supporting substantial radial dynamic load ratings (4388 lbf) and axial loads.
- Superior High-Speed Performance: The lightweight phenolic cage and optimized internal geometry contribute to a high limiting speed of 36,000 rpm, reducing centrifugal forces and operational temperatures.
- Exceptional Precision: Manufactured to P4A tolerance class with tight bore and outside diameter tolerances, this bearing guarantees minimal runout and vibration for ultra-precise applications.
- Universal Matching: Designed as Universal Matchable (SU), these bearings can be universally paired in any combination to form precisely preloaded sets (e.g., DB or DF arrangements), simplifying inventory and assembly.
- Sealed & Lubricated for Life: The sealed design with grease lubrication protects against contamination and is suitable for a standard operating temperature range of -30°C to 110°C.
S7013 ACEGA/P4A Bearing Typical Application Areas
This bearing is engineered for high-performance applications where speed, precision, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy actuators.
- High-Frequency Motors & Spindles: Motors for PCB drilling and dental handpieces.
- Aerospace & Defense Systems: Gyroscopes, radar equipment, and navigation systems.
