S71914 CB/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S71914 CB/HCP4A
Basic Information
System of measurement
Metric
Weight
0.34 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
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
22 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:
$ 850.58
/ each
In Stock
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S71914 CB/HCP4A Bearing Product Overview & Core Advantages
The S71914 CB/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and reliability. This single-row bearing features a 15° contact angle and is supplied with a preload, delivering superior rotational accuracy, high rigidity, and excellent high-speed performance. Its combination of a ceramic ball material and P4 (ABEC-7) tolerance class makes it an ideal solution for machine tool spindles and other precision equipment where minimal runout and long service life are critical.
S71914 CB/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| 719 | Indicates a high-precision angular contact ball bearing series. |
| 14 | Specifies the bore diameter code (70 mm). |
| C | Designates a 15° contact angle. |
| B | Signifies a preload class for enhanced rigidity. |
| HC | Denotes the use of hybrid ceramic balls (Silicon Nitride). |
| P4 | Specifies the tolerance class (ABEC-7), ensuring ultra-precise dimensions and runout control. |
| A | Indicates the bearing is lubricated from the factory. |
S71914 CB/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The use of ceramic balls with a steel ring significantly reduces centrifugal forces, lowers operating temperature, and enables higher limiting speeds (22,000 rpm). This construction also provides superior resistance to wear and a longer operational lifespan.
- High Rigidity & Precision: The application of a preload eliminates internal clearance, resulting in exceptional shaft positioning accuracy and stiffness, which is critical for minimizing deflection under load in high-precision applications.
- Optimized for Combined Loads: The 15° contact angle is optimally designed to support significant radial loads while also accommodating substantial axial loads in one direction, making it highly effective for combined loading conditions.
- Phenolic Cage & High-Speed Capability: The lightweight and robust phenolic cage ensures stable operation and guides the balls effectively at high rotational speeds, contributing to the bearing's impressive high-speed performance.
- Sealed & Lubricated for Reliability: As a sealed and pre-lubricated unit, the bearing is protected from contamination and is ready for immediate installation, offering a maintenance-free solution within its specified temperature range (-30° to 110 °C).
S71914 CB/HCP4A Bearing Typical Application Areas
The S71914 CB/HCP4A is ideally suited for high-performance machinery requiring maximum precision and speed. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Instrumentation: Measuring devices and laboratory equipment.
- High-Frequency Motors & Spindles: Where low inertia and high RPM are critical.
- Medical Equipment: Dental handpieces and high-speed surgical tools.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other precision mechanisms.
