S71924 ACE/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71924 ACE/P4A
Basic Information
System of measurement
Metric
Weight
1.14 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
120 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
165 mm
Outside diameter tolerance
-0.01mm to 0
Width
22 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
14.288 mm
Ball quantity
24
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
10102 lbf
Radial static load rating
8550 lbf
Limiting speed
9.5 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:
$ 1978.32
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S71924 ACE/P4A Bearing Product Overview & Core Advantages
The S71924 ACE/P4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. This single-row bearing features a 25° contact angle and is supplied with a preload, enabling it to handle significant combined loads (radial and axial) simultaneously. Manufactured to P4 (ABEC-7) tolerance class, it guarantees superior running accuracy and high system rigidity. Its compact design, sealed construction, and pre-lubrication make it an ideal, ready-to-install solution for high-speed spindles and precision machinery.
Model Code Breakdown
The S71924 ACE/P4A model designation provides detailed technical specifications:
- S7: High-precision bearing series.
- 1924: Standard size designation (Bore: 120mm, OD: 165mm, Width: 22mm).
- ACE: Specific internal design and contact angle (25°).
- P4A: Denotes a P4 (ABEC-7) tolerance class and specific preload level.
S71924 ACE/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The single-row design with a 25° contact angle and preload provides high stiffness, minimizing deflection under load and ensuring precise shaft positioning, which is critical for machining accuracy.
- Superior Load Capacity: Engineered to support substantial combined radial and axial loads, with a dynamic load rating of 10,102 lbf and a static load rating of 8,550 lbf.
- Optimized High-Speed Performance: The lightweight phenolic resin cage ensures stable operation and low centrifugal forces, contributing to a high limiting speed of 9,500 rpm.
- Sealed and Lubricated for Longevity: Comes as a sealed and pre-lubricated unit, protecting against contamination and providing maintenance-free operation within its specified temperature range (-30°C to 110°C).
S71924 ACE/P4A Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications where precision and speed are paramount, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Advanced Robotics and Automation Equipment
