71910 CDTP/P4B
71900 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
71910 CDTP/P4B
Basic Information
System of measurement
Metric
Weight
0.13 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
17 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 404.5
/ each
In Stock
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71910 CDTP/P4B Bearing Product Overview & Core Advantages
The 71910 CDTP/P4B is a single-row angular contact ball bearing designed for applications requiring exceptional precision and high-speed performance. Engineered to P4 (ABEC-7) tolerance class, it delivers superior running accuracy and rotational stability. Its primary advantage lies in its ability to support combined loads, efficiently carrying significant radial loads alongside axial loads in one direction. The phenolic cage and optimized internal geometry contribute to its high limiting speed of 17,000 rpm, making it an ideal choice for high-rigidity, precision spindles and machinery.
71910 CDTP/P4B Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71910 | Standard series designation for a high-precision angular contact bearing. |
| C | Specifies a 15° contact angle, optimized for high-speed operation. |
| DTP | Indicates a matched arrangement with a specific preload (duplex, tandem, preload). |
| P4B | Denotes the P4 (ABEC-7) tolerance class for dimensional and running accuracy. |
71910 CDTP/P4B Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: Manufactured to P4 tolerance class with a 15° contact angle, this bearing provides exceptional dimensional stability and running accuracy, essential for minimizing vibration and thermal growth in precision applications.
- Optimized for High Speeds: The lightweight phenolic resin cage reduces centrifugal forces, while the open design and factory-applied lubrication enable a high limiting speed of 17,000 rpm.
- Superior Load Capacity: The single-row design with a chrome steel construction and 25 precision balls provides a high dynamic load rating of 3038 lbf, capable of handling demanding combined radial and axial loads.
- Preload Availability: The bearing is supplied with a preload, ensuring zero clearance for enhanced stiffness and precise shaft positioning, which is critical in machine tool spindles.
71910 CDTP/P4B Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles (milling, grinding, and turning centers)
- High-Frequency Spindles
- Precision Gearboxes
- Robotic Drives and Actuators
- Medical and Dental Equipment
