71830 CD/HCP4
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
71830 CD/HCP4
Basic Information
System of measurement
Metric
Weight
0.98 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
150 mm
Bore diameter tolerance
-0.01mm to 0
Outside diameter
190 mm
Outside diameter tolerance
-0.011mm to 0
Width
20 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
35
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
11700 lbf
Radial static load rating
16200 lbf
Limiting speed
11 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:
$ 2405.11
/ each
In Stock
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71830 CD/HCP4 Bearing Product Overview & Core Advantages
The 71830 CD/HCP4 is a single-row angular contact ball bearing engineered for applications demanding high precision and exceptional performance. Its primary advantage lies in its ability to accommodate combined loads—simultaneously handling significant radial loads and axial loads in one direction. Manufactured to a P4 (ABEC-7) tolerance class, it guarantees extreme dimensional accuracy and running precision. The combination of a ceramic ball material and a phenolic cage contributes to its suitability for high-speed operation, offering reduced weight, lower friction, and superior performance at the specified limiting speed.
71830 CD/HCP4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71830 | Basic bearing designation, defining the standard bore diameter (150 mm), outside diameter (190 mm), and width (20 mm). |
| C | Designates a 15° contact angle, optimized for high-speed applications requiring high axial load capacity. |
| D | Indicates that the bearing is manufactured with enhanced internal geometry for high-precision performance. |
| HC | Signifies the use of Hybrid Ceramic balls, combining steel rings with ceramic balls for reduced friction, higher speed capability, and longer service life. |
| P4 | Specifies the tolerance class (equivalent to ABEC-7), denoting very high precision in dimensions and running accuracy. |
71830 CD/HCP4 Bearing Structural Features & Performance Benefits
- High-Speed Capability: The 15° contact angle and lightweight phenolic resin cage are engineered to minimize centrifugal forces and friction, enabling stable operation at the high limiting speed of 11,000 rpm.
- Superior Rigidity and Load Capacity: The optimized internal design and preload availability ensure high system rigidity. With a dynamic load rating of 11,700 lbf and a static load rating of 16,200 lbf, it reliably handles demanding combined load conditions.
- Hybrid Ceramic Advantage: The use of ceramic balls provides key benefits including electrical insulation, reduced thermal expansion, and the ability to operate with minimal lubrication, enhancing performance in challenging environments.
- Precision Engineering: Manufactured to P4 tolerance with tight dimensional controls on the bore, outside diameter, and width, this bearing ensures minimal runout and vibration for ultra-precise applications.
71830 CD/HCP4 Bearing Typical Application Areas
This high-precision angular contact bearing is ideally suited for:
- Machine Tool Spindles: High-speed machining centers and grinding spindles.
- Precision Robotics: Arm joints and rotary actuators requiring high rigidity and accuracy.
- Aerospace & Defense Systems: Gyroscopes, radar platforms, and auxiliary power units.
- High-Frequency Motors and Spindles: Where low friction, high speed, and long life are critical.
