71914 CB/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
71914 CB/HCP4A
Basic Information
System of measurement
Metric
Weight
0.33 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
70 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
100 mm
Outside diameter tolerance
-0.008mm to 0
Width
16 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
6.35 mm
Ball quantity
32
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
3105 lbf
Radial static load rating
2812 lbf
Limiting speed
32 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:
$ 708.38
/ each
In Stock
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71914 CB/HCP4A Bearing Product Overview & Core Advantages
The 71914 CB/HCP4A is a single-row angular contact ball bearing engineered for applications demanding high precision and superior performance. Its defining feature is the 15° contact angle, which is optimized to handle significant combined loads—simultaneously supporting substantial radial loads and axial loads in one direction. Manufactured to the exacting P4 (ABEC-7) tolerance class, it ensures exceptional running accuracy and rotational stability. The combination of a phenolic cage and ceramic balls contributes to its high-speed capability, low friction, and extended service life, making it an ideal choice for high-rigidity and high-reliability installations.
71914 CB/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71914 | Basic bearing series and size designation (70mm bore, 100mm OD). |
| CB | Specific internal design with a 15° contact angle and enhanced internal geometry. |
| HC | Indicates the use of Hybrid Ceramic balls (Silicon Nitride). |
| P4 | Specifies the high-precision tolerance class (ABEC-7 equivalent). |
| A | Denotes that the bearing is supplied with a specific preload for optimal rigidity and accuracy. |
71914 CB/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity & Preload: The bearing is supplied with a controlled preload, which eliminates internal clearance. This significantly increases system stiffness, improves rotational accuracy, and dampens vibrations, which is critical for high-precision machinery.
- Superior Load Capacity: The angular contact design with a 15° contact angle is engineered to efficiently support combined radial and axial loads. With a dynamic load rating of 3105 lbf and a static load rating of 2812 lbf, it offers reliable performance under demanding conditions.
- High-Speed Performance: The lightweight phenolic resin cage and low-density ceramic balls reduce centrifugal forces, enabling a high limiting speed of 32,000 rpm. This hybrid construction also reduces operating temperature and wear.
- Precision & Longevity: Manufactured to P4 tolerance from high-grade chrome steel rings, the bearing guarantees minimal runout and consistent performance. The open design allows for customized lubrication schemes to further optimize service life for specific operating environments.
71914 CB/HCP4A Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Robotic Drives and CNC rotary tables
- High-Frequency Motors and Spindle Drives
- Aerospace & Defense Systems (Gyroscopes, navigation instruments)
- Medical Equipment (High-speed dental handpieces, laboratory centrifuges)
