71810 ACD/HCP4
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
71810 ACD/HCP4
Basic Information
System of measurement
Metric
Weight
0.046 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
65 mm
Outside diameter tolerance
-0.007mm to 0
Width
7 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
3.969 mm
Ball quantity
30
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
1550 lbf
Radial static load rating
1654 lbf
Limiting speed
34 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:
$ 459.34
/ each
In Stock
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71810 ACD/HCP4 Bearing Product Overview & Core Advantages
The 71810 ACD/HCP4 is a single-row angular contact ball bearing engineered for high-precision and high-speed applications. Its defining feature is the 25° contact angle and P4 (ABEC-7) tolerance class, enabling it to handle significant combined loads—both radial and axial—with exceptional accuracy. The use of a phenolic cage and ceramic balls contributes to lower friction, higher limiting speeds, and reduced weight, making it an ideal solution for demanding, compact assemblies requiring superior rotational performance and rigidity.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 71810 | Basic bearing series and size designation (50mm bore, 65mm OD, 7mm width). |
| ACD | Angular Contact Design with a 25° contact angle. |
| HCP4 | Indicates a P4 (ABEC-7) tolerance class for ultra-precise running accuracy. |
71810 ACD/HCP4 Bearing Structural Features & Performance Benefits
- High-Speed Capability & Reduced Weight: The combination of a lightweight phenolic cage and low-density ceramic balls minimizes centrifugal forces, enabling a high limiting speed of 34,000 rpm and reducing overall inertia.
- Superior Rigidity & Load Capacity: The 25° contact angle is optimized to support substantial combined loads, providing high axial and radial stiffness for stable operation.
- Precision Performance: Manufactured to P4 tolerance class, this bearing ensures minimal runout and vibration, which is critical for applications requiring extreme rotational accuracy.
- Pre-Lubricated & Ready-to-Use: The bearing is pre-lubricated, facilitating immediate installation and initial operation within its specified temperature range of -30°C to 110°C.
71810 ACD/HCP4 Bearing Typical Application Areas
This high-precision angular contact bearing is ideally suited for:
- Machine Tool Spindles
- High-Speed Robotic Drives
- Precision Grinding & Milling Heads
- Aerospace Actuators & Control Systems
- Medical and Dental Handpiece Drives
