S71924 CD/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71924 CD/P4A
Basic Information
System of measurement
Metric
Weight
1.21 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
15 °
Ball & Washer Dimensions
Ball diameter
14.288 mm
Ball quantity
28
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
17550 lbf
Radial static load rating
20588 lbf
Limiting speed
7.5 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:
$ 1978.58
/ each
In Stock
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S71924 CD/P4A Bearing Product Overview & Core Advantages
The S71924 CD/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 is optimized to support high combined loads, handling significant radial forces alongside thrust loads in one direction. Manufactured to a P4 (ABEC-7) tolerance class, it guarantees minimal runout and superior performance in high-speed and high-precision environments. Its compact design and preload availability make it an ideal choice for spindles and other critical machinery components.
S71924 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
The model designation S71924 CD/P4A provides specific technical details:
- S7: Indicates a series of high-precision angular contact ball bearings.
- 1924: Specifies the dimensional series; '19' for the series and '24' for a 120mm bore.
- CD: Denotes a 15° contact angle and a specific internal design optimized for high rigidity and speed.
- P4A: Signifies the tolerance class P4 (ABEC-7), denoting very high precision levels for inner and outer ring runout and dimensions.
S71924 CD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The bearing's single-row design with a 15° contact angle and P4 precision ensures high system stiffness and minimal deflection under load, which is critical for machining accuracy.
- Superior Load Capacity: Engineered to accommodate substantial combined radial and axial loads, making it suitable for applications with complex loading conditions.
- Optimized High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, enabling a high limiting speed of 7,500 rpm. The standard lubrication further supports stable operation at these velocities.
- Durability and Reliability: Constructed from chrome steel for both rings and balls, the bearing offers excellent wear resistance and a long operational life. The sealed design protects against contamination.
S71924 CD/P4A Bearing Typical Application Areas
This precision bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Gearboxes and High-Frequency Motors.
- Medical Equipment and Aerospace Instrumentation requiring high accuracy and reliability.
- Robotic Arms and High-Speed Automation Systems.
