71824 CD/P4
71800 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
71824 CD/P4
Basic Information
System of measurement
Metric
Weight
0.55 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
120 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
150 mm
Outside diameter tolerance
-0.009mm to 0
Width
16 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
8.731 mm
Ball quantity
35
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
7470 lbf
Radial static load rating
10125 lbf
Limiting speed
12 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:
$ 1693.86
/ each
In Stock
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71824 CD/P4 Bearing Product Overview & Core Advantages
The 71824 CD/P4 is a single-row angular contact ball bearing engineered for applications demanding exceptional precision and rigidity. Manufactured to P4 (ABEC-7) tolerance class, this bearing is designed to handle high-speed operations and significant combined loads (radial and axial). Its optimized internal geometry and 15° contact angle provide superior axial load capacity and operational stability. The preload availability ensures minimal axial play, making it ideal for high-precision spindles and other critical machinery where accuracy and high rigidity are paramount.
71824 CD/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71824 | Basic bearing designation, indicating the specific size series and dimensions (120mm bore, 150mm OD, 16mm width). |
| CD | Indicates a specific internal design with optimized contact angle and internal clearance, typically for high-speed applications and matched arrangements. |
| P4 | Denotes the tolerance class, equivalent to ABEC-7. This signifies extremely tight dimensional and running accuracy for superior performance. |
71824 CD/P4 Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The single-row angular contact design with a 15° contact angle and P4 precision provides excellent rotational accuracy and system stiffness, crucial for minimizing deflection under load.
- Superior Load Capacity: Engineered to support significant combined radial and axial loads simultaneously. The high-grade chrome steel construction and optimized raceway geometry contribute to its high dynamic (7470 lbf) and static (10125 lbf) load ratings.
- Optimized High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, enabling a high limiting speed of 12,000 rpm. The open seal type minimizes friction for maximum speed capability.
- Preload and Stability: The availability of preload allows for precise control of internal clearance, resulting in increased bearing rigidity, reduced noise and vibration, and enhanced positional accuracy of the shaft.
71824 CD/P4 Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Gearboxes: Where high rotational accuracy and load capacity are required.
- High-Frequency Motors and Spindles: Applications demanding minimal runout and high rigidity.
- Medical and Dental Equipment: High-speed handpieces and diagnostic scanners.
- Aerospace Actuation Systems: Control surface actuators and auxiliary power units.
