71824 CD/HCP4
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
71824 CD/HCP4
Basic Information
System of measurement
Metric
Weight
0.49 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
14 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:
$ 1693.98
/ each
In Stock
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71824 CD/HCP4 Bearing Product Overview & Core Advantages
The 71824 CD/HCP4 is a single-row angular contact ball bearing engineered for applications demanding high precision and high-speed performance. Designed to accommodate combined loads, it efficiently handles both radial and significant axial loads in one direction. Its construction with a ceramic ball and phenolic cage contributes to lower friction, reduced weight, and superior performance at high rotational speeds. Manufactured to a P4 (ABEC-7) tolerance class, this bearing is ideal for machine tool spindles and other high-accuracy, high-reliability applications.
71824 CD/HCP4 Bearing Model Code Explained, Specifications & Naming Convention
The model number 71824 CD/HCP4 is decoded as follows:
- 71824: Basic bearing series, indicating a light-weight, high-precision angular contact design with a 120mm bore.
- C: Represents a 15° contact angle, optimized for high-speed operation and axial load capacity.
- D: Indicates the bearing is supplied with a specific preload for enhanced rigidity and precise rotational accuracy.
- HC: Signifies the use of Hybrid Ceramic components, specifically ceramic balls with steel rings.
- P4: Denotes the tolerance class, equivalent to ABEC-7, ensuring extremely tight dimensional and running accuracy.
71824 CD/HCP4 Bearing Structural Features & Performance Benefits
- High-Speed & Low Friction: The combination of ceramic balls and a lightweight phenolic cage minimizes centrifugal forces and friction, enabling a high limiting speed of 14,000 rpm.
- High Rigidity & Precision: The 15° contact angle and factory-set preload provide exceptional system stiffness and minimize axial and radial runout, which is critical for precision machining.
- Superior Load Capacity: The optimized internal geometry allows for a high dynamic and static load rating, reliably supporting combined radial and axial loads.
- Thermal Stability: The phenolic cage and ceramic balls offer superior dimensional stability across the operating temperature range of -30°C to 110°C.
71824 CD/HCP4 Bearing Typical Application Areas
This high-performance angular contact bearing is ideally suited for:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Robotics (Articulated arms, high-accuracy joints)
- High-Frequency Motors and Spindles
- Medical and Dental Equipment (High-speed handpieces, scanners)
- Aerospace Instrumentation and other applications requiring high rotational accuracy and speed.
