S71924 CD/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71924 CD/HCP4A
Basic Information
System of measurement
Metric
Weight
1.01 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
9 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Ceramic
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/HCP4A Bearing Product Overview & Core Advantages
The S71924 CD/HCP4A is a single-row angular contact ball bearing engineered for applications demanding high precision and superior performance. Its defining feature is the ability to support combined loads, efficiently handling both radial and significant axial loads in one direction. Manufactured to a P4 (ABEC-7) tolerance class and featuring a ceramic ball and phenolic cage construction, this bearing is optimized for high-speed operation and offers exceptional rigidity and operational life. The pre-greased and sealed design ensures long-term, maintenance-free reliability.
Model Code Breakdown
The model number S71924 CD/HCP4A provides detailed technical specifications:
- 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.
- C: Denotes a 15° contact angle, optimized for high-speed applications.
- D: Signifies a preload class, providing increased rigidity and precise shaft positioning.
- HC: Stands for Hybrid Ceramic, indicating the use of ceramic balls with steel rings.
- P4: Specifies the P4 (ABEC-7) tolerance class, ensuring ultra-high precision.
- A: Indicates that the bearing is lubricated and sealed.
S71924 CD/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The single-row angular contact design, combined with a preload (D), provides exceptional system stiffness and minimizes axial and radial runout, which is critical for precision equipment.
- Superior Load Capacity: With a 15° contact angle, this bearing is engineered to handle high combined loads, offering a dynamic load rating of 17,550 lbf and a static load rating of 20,588 lbf.
- Exceptional High-Speed Performance: The hybrid ceramic construction (ceramic balls and steel rings) reduces centrifugal forces and friction, while the lightweight phenolic cage ensures stability, enabling a high limiting speed of 9,000 rpm.
- Maintenance-Free Operation: The bearing comes sealed and pre-lubricated, protecting against contamination and providing long service life without the need for re-lubrication within its specified temperature range of -30° to 110 °C.
S71924 CD/HCP4A Bearing Typical Application Areas
This high-precision bearing is ideally suited for demanding applications, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Medical and Dental Equipment
- Aerospace Actuators and Control Systems
