S71919 ACE/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71919 ACE/P4A
Basic Information
System of measurement
Metric
Weight
0.57 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
95 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
130 mm
Outside diameter tolerance
-0.009mm to 0
Width
18 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° to 110 °C
Radial dynamic load rating
6548 lbf
Radial static load rating
5400 lbf
Limiting speed
12.3 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:
$ 1423.31
/ each
In Stock
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S71919 ACE/P4A Bearing Product Overview & Core Advantages
The S71919 ACE/P4A is a single-row angular contact ball bearing engineered for applications demanding high precision and superior rotational accuracy. Designed to accommodate combined loads (radial and axial loads in one direction), this bearing features a 25° contact angle for optimal axial load capacity. Its P4 (ABEC-7) tolerance class ensures exceptional dimensional stability and running accuracy, making it ideal for high-speed spindles and precision machinery. The bearing comes preloaded and lubricated for immediate installation and long-term reliability.
S71919 ACE/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S71919 | Basic bearing designation indicating a single-row angular contact ball bearing with specific dimensions (95mm bore, 130mm OD, 18mm width). |
| ACE | Designates a 25° contact angle and optimized internal geometry for high-speed performance. |
| P4A | Indicates P4 (ABEC-7) tolerance class with specific running accuracy requirements for precision applications. |
S71919 ACE/P4A Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: Manufactured to P4 tolerance class with strict dimensional control (bore tolerance: -0.008mm to 0), ensuring minimal runout and vibration for precise positioning.
- Optimized Load Capacity: The 25° contact angle provides excellent axial load capacity while maintaining substantial radial load capability (dynamic: 6548 lbf, static: 5400 lbf).
- High-Speed Capability: Features a phenolic cage that reduces centrifugal forces and friction, enabling operation at limiting speeds up to 12,300 rpm.
- Sealed & Lubricated Design: Comes sealed and pre-lubricated with high-quality grease, providing contamination protection and maintenance-free operation within the specified temperature range (-30° to 110°C).
- Premium Materials: Constructed from chrome steel rings and balls with precisely sized 11.112 mm balls (25 count) for consistent performance and durability.
S71919 ACE/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers, grinding spindles, and CNC milling machines
- High-Speed Motors: Electric spindle motors, high-frequency motors, and precision servo drives
- Precision Instrumentation: Measuring equipment, optical instruments, and laboratory apparatus
- Robotics & Automation: Industrial robot joints, precision positioning systems, and automated assembly equipment
- Aerospace Components: Gyroscopes, navigation systems, and aircraft instrumentation
