71810 CD/P4DGA
71800 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
71810 CD/P4DGA
Basic Information
System of measurement
Metric
Weight
0.1 kg
Tolerance class
P4
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
50 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
65 mm
Outside diameter tolerance
-0.004mm to 0
Width
14 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
3.969 mm
Ball quantity
30
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
2722 lbf
Radial static load rating
3510 lbf
Limiting speed
46 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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71810 CD/P4DGA Bearing Product Overview & Core Advantages
The 71810 CD/P4DGA is a super-precision angular contact ball bearing designed for applications demanding the highest levels of rotational accuracy and rigidity. Operating under the P4 tolerance class, this bearing is engineered to handle combined loads efficiently while maintaining exceptional performance at high speeds. Its extra light preload (Class A) minimizes deflection and ensures smooth, precise operation. The bearing is supplied pre-lubricated and is part of a Universal Matchable (SU) pair, allowing for simplified installation and optimized performance in duplex arrangements.
71810 CD/P4DGA Bearing Model Code Explained, Specifications & Naming Convention
The model number 71810 CD/P4DGA provides detailed technical specifications:
- 71810: Basic bearing series, indicating a 50mm bore, 65mm OD, and 14mm width.
- C: Denotes a 15° contact angle, optimized for high-speed applications.
- D: Indicates the bearing is part of a Universal Matchable (SU) pair for duplex mounting.
- P4: Specifies the tolerance class, indicating very high precision.
- DGA: Signifies the bearing is supplied with a preload of "Extra Light" (Class A).
71810 CD/P4DGA Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: Manufactured to P4 tolerance standards with an extra light preload, this bearing provides superior rotational accuracy and stiffness, minimizing runout and vibration.
- Optimized for Combined Loads: The 15° contact angle design enables the bearing to support significant radial loads and axial loads in one direction simultaneously.
- High-Speed Capability: The lightweight phenolic resin cage and precision-ground components contribute to a high limiting speed of 46,000 rpm, making it ideal for demanding spindle applications.
- Universal Matchability (SU): Designed as a universal matchable bearing, two bearings can be paired in a back-to-back (DB), face-to-face (DF), or tandem (DT) arrangement without selective mounting, simplifying installation and ensuring consistent preload.
- Durable Construction: Made from high-grade chrome steel for both rings and balls, ensuring long service life and reliability.
71810 CD/P4DGA Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: Applications in PCB drilling, dental handpieces, and small precision motors.
- High-Frequency Motors: Where low vibration and high rotational accuracy are critical.
- Robotics: Joint and arm articulation requiring high rigidity and precision.
- Medical Equipment: Diagnostic scanners and laboratory instrumentation.
