71952 CD/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
71952 CD/HCP4A
Basic Information
System of measurement
Metric
Weight
10.4 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
260 mm
Bore diameter tolerance
-0.013mm to 0
Outside diameter
360 mm
Outside diameter tolerance
-0.015mm to 0
Width
46 mm
Width tolerance
-0.24mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
30.162 mm
Ball quantity
29
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
63225 lbf
Radial static load rating
95625 lbf
Limiting speed
6.3 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:
$ 7088.81
/ each
In Stock
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71952 CD/HCP4A Bearing Product Overview & Core Advantages
The 71952 CD/HCP4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. This metric precision bearing is distinguished by its ceramic balls and P4 (ABEC-7) tolerance class, ensuring superior performance in demanding operational environments. Its primary advantage lies in its ability to accommodate high axial loads in one direction while offering high-speed capabilities, making it an ideal component for applications where high rigidity and precision are paramount.
71952 CD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71952 | Basic bearing designation, indicating size series and bore diameter (260 mm) |
| CD | Contact angle designation (15°), optimized for combined radial and axial loads |
| HC | Hybrid Ceramic construction, featuring ceramic balls for enhanced performance |
| P4 | Precision tolerance class (equivalent to ABEC-7), ensuring high running accuracy |
| A | Preload designation, indicating the bearing is supplied with a specific internal preload |
71952 CD/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Design: The use of ceramic balls significantly reduces friction and heat generation, enabling higher limiting speeds (6,300 rpm) and extended service life compared to all-steel designs.
- High Rigidity & Load Capacity: The 15° contact angle and robust construction provide excellent rigidity, with a dynamic load rating of 63,225 lbf and static load rating of 95,625 lbf, making it suitable for applications with significant axial loads.
- Precision Performance: Manufactured to P4 (ABEC-7) tolerance standards, this bearing ensures minimal runout and vibration, critical for high-precision machinery.
- Optimized High-Speed Operation: The phenolic resin cage offers low weight and excellent dimensional stability at high speeds, contributing to the bearing's overall high-speed performance.
- Pre-lubricated & Ready for Use: The bearing comes pre-lubricated, facilitating immediate installation and initial operation.
71952 CD/HCP4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers and grinding spindles requiring precision and rigidity.
- Precision Medical Equipment: Dental handpieces and surgical drill motors.
- Aerospace & Defense Systems: Gyroscopes, navigation systems, and other high-reliability components.
- High-Frequency Motors & Spindles: Electric motors and spindles operating at elevated speeds.
- Semiconductor Manufacturing Equipment: Wafer handling robots and precision stages.
