S71913 CE/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71913 CE/P4A
Basic Information
System of measurement
Metric
Weight
0.2 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
65 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
90 mm
Outside diameter tolerance
-0.008mm to 0
Width
13 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
24
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
3712 lbf
Radial static load rating
2745 lbf
Limiting speed
20 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 770.24
/ each
In Stock
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S71913 CE/P4A Bearing Product Overview & Core Advantages
The S71913 CE/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As a single-row bearing with a 15° contact angle, it excels at supporting combined loads, particularly handling high axial loads in one direction alongside significant radial loads. Its P4 (ABEC-7) tolerance class ensures minimal runout and vibration, making it ideal for high-speed spindles and other precision machinery. The bearing comes preloaded and pre-lubricated for immediate installation and optimized performance.
S71913 CE/P4A Bearing Model Code Explained, Specifications & Naming Convention
The S71913 CE/P4A model number provides detailed technical specifications:
- S: Denotes a high-precision bearing series.
- 7: Identifies the bearing type as an angular contact ball bearing.
- 19: Indicates a "Bore Series 19" with a specific cross-section.
- 13: Specifies the bore diameter code (65 mm).
- CE: Signifies a contact angle of 15° and specific internal design optimizations.
- P4A: Denotes the tolerance class P4 (ABEC-7) and specific running accuracy requirements.
S71913 CE/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: Manufactured to a P4 tolerance class, this bearing guarantees exceptional dimensional stability and low noise operation, which is critical for maintaining machining accuracy.
- Optimized Load Capacity: The 15° contact angle and robust construction using chrome steel for rings and balls provide a high dynamic load rating of 3712 lbf, enabling reliable performance under demanding combined loads.
- High-Speed Capability: The lightweight phenolic resin cage minimizes centrifugal forces, contributing to a high limiting speed of 20,000 rpm. This makes it suitable for high-speed applications.
- Preloaded and Ready-to-Use: Supplied with a light preload, the bearing eliminates internal clearance, enhancing system stiffness and rotational accuracy from the moment of installation. The factory-applied lubrication ensures immediate operation.
S71913 CE/P4A Bearing Typical Application Areas
This precision bearing is engineered for high-performance applications where speed, accuracy, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Drives: High-frequency motors and spindle drives.
- Robotics: Articulated arms and precision gearboxes.
- Medical Equipment: Dental handpieces and laboratory centrifuges.
- Aerospace Systems: Gyroscopes and navigation instruments.
