71819 CD/HCP4
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
71819 CD/HCP4
Basic Information
System of measurement
Metric
Weight
0.26 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
95 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
120 mm
Outside diameter tolerance
-0.008mm to 0
Width
13 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
7.144 mm
Ball quantity
32
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
4972 lbf
Radial static load rating
6188 lbf
Limiting speed
19 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:
$ 1257.12
/ each
In Stock
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71819 CD/HCP4 Bearing Product Overview & Core Advantages
The 71819 CD/HCP4 is a single-row angular contact ball bearing engineered for applications demanding high precision and high-speed operation. Its design is optimized to support significant combined loads (radial and axial) simultaneously. Key advantages include its P4 (ABEC-7) tolerance class for exceptional running accuracy, a ceramic ball and phenolic cage combination for superior high-speed performance, and the availability of preload for enhanced system rigidity. This bearing is pre-lubricated for immediate operation and is ideal for high-reliability, precision machinery.
71819 CD/HCP4 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning | Advantage |
|---|---|---|
| 71819 | Basic bearing designation indicating the bearing size (95mm bore, 120mm OD, 13mm width). | Defines the physical dimensions for fit and integration. |
| CD | Indicates a 15° contact angle and optimized internal design for high rigidity. | Provides high resistance to axial loads and improves system stiffness. |
| HC | Signifies the use of Hybrid Ceramic balls (ceramic balls with steel rings). | Reduces friction, allows for higher speeds, and increases service life. |
| P4 | Denotes the tolerance class equivalent to ABEC-7. | Ensures ultra-precise dimensions and runout for high-accuracy applications. |
71819 CD/HCP4 Bearing Structural Features & Performance Benefits
- High-Speed Capability: The combination of a lightweight phenolic resin cage and low-friction ceramic balls significantly reduces centrifugal forces and operating temperature, enabling a high limiting speed of 19,000 rpm.
- High Rigidity & Load Capacity: The angular contact design with a 15° contact angle is engineered to handle substantial combined loads. The availability of preload further increases system stiffness, minimizing deflection under load.
- Precision Performance: Manufactured to a P4 tolerance class, this bearing guarantees minimal runout and vibration, which is critical for maintaining accuracy in precision equipment.
- Optimized for Operation: The bearing is supplied lubricated, ready for immediate installation and use within its specified temperature range of -30°C to 110°C.
71819 CD/HCP4 Bearing Typical Application Areas
This high-performance angular contact ball bearing is ideally suited for demanding applications, including:
- High-Speed Machine Tool Spindles
- Precision Grinding Spindles
- High-Frequency Motors
- Robotic Drives and Actuators
- Aerospace Control Systems
