71910 CDTP/HCP4B
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
71910 CDTP/HCP4B
Basic Information
System of measurement
Metric
Weight
0.12 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
50 mm
Bore diameter tolerance
-0.006mm to 0
Outside diameter
72 mm
Outside diameter tolerance
-0.007mm to 0
Width
12 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
6.35 mm
Ball quantity
25
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
3038 lbf
Radial static load rating
2340 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:
$ 404.11
/ each
In Stock
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71910 CDTP/HCP4B Bearing Product Overview & Core Advantages
The 71910 CDTP/HCP4B is a single-row angular contact ball bearing engineered for high-precision applications demanding exceptional speed and rigidity. Positioned in the P4 (ABEC-7) tolerance class, it delivers superior running accuracy. Its core advantage lies in its ability to accommodate combined loads—significant radial loads and substantial axial loads in one direction—thanks to its defined 15° contact angle. The combination of a ceramic ball and phenolic cage enables outstanding high-speed performance, making it an ideal solution for machine tool spindles and other precision machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 71910 | Basic bearing designation, indicating a high-precision, light series angular contact bearing with a 50mm bore. |
| C | Specifies a 15° contact angle, optimized for high-speed operation. |
| DT | Indicates a matched set (Duplex Tandem) arrangement, designed to be mounted with a second bearing to increase axial load capacity and rigidity. |
| P | Signifies that the bearing is supplied with a specific preload for immediate high-rigidity performance. |
| HC | Refers to the Hybrid Ceramic construction, featuring steel rings and ceramic balls. |
| P4 | Denotes the tolerance class P4 (ABEC-7), ensuring extremely tight dimensional and running accuracy. |
71910 CDTP/HCP4B Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: Manufactured to P4 tolerance class with a preload, this bearing provides exceptional system stiffness and minimal runout, which is critical for maintaining accuracy under load.
- Superior High-Speed Capability: The hybrid ceramic design with silicon nitride balls and a lightweight phenolic resin cage significantly reduces centrifugal forces, lowers operating temperature, and allows for a high limiting speed of 22,000 rpm.
- Excellent Load Capacity: The angular contact design with a 15° contact angle efficiently handles combined radial and axial loads, with a dynamic load rating of 3038 lbf.
- Optimized for Demanding Environments: The open seal type allows for customized lubrication schemes, while the ceramic balls offer increased durability and longer service life, especially in high-temperature applications.
71910 CDTP/HCP4B Bearing Typical Application Areas
This high-precision angular contact bearing is ideally suited for applications requiring high speed, rigidity, and accuracy, including:
- Machine Tool Spindles (High-speed milling, grinding)
- Precision Robotics and Automation Equipment
- High-Frequency Spindles for PCB drilling
- Medical Equipment (e.g., Dental handpieces)
- Aerospace Instrumentation and Auxiliary Systems
