71910 ACE/HCP4ADGA

Hybrid Ceramic Super Precision Bearings

71910 ACE/HCP4ADGA Hybrid Ceramic Super Precision Bearings
71910 ACE/HCP4ADGA Hybrid Ceramic Super Precision Bearings

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Part No.
Part No. 71910 ACE/HCP4ADGA

Basic Information

System of measurement Metric
Weight 0.22 kg
Tolerance class P4A
Seal type Open
For load direction Angular Contact

Main Dimensions

Bore diameter 50 mm
Bore diameter tolerance -0.004mm to 0
Outside diameter 72 mm
Outside diameter tolerance -0.004mm to 0
Width 24 mm
Width tolerance -0.2mm to 0
Contact angle 25 °

Ball & Washer Dimensions

Ball diameter 7.144 mm
Ball quantity 21

Performance

Temperature range - 30°C to 110 °C
Radial dynamic load rating 4478 lbf
Radial static load rating 3668 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 Ceramic
Cage material Phenolic
Technical Drawings No drawings available at the moment, will be launched soon
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71910 ACE/HCP4ADGA Bearing Product Overview & Core Advantages

The 71910 ACE/HCP4ADGA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This universal matchable bearing features a P4A tolerance class for superior running accuracy, a ceramic ball construction for reduced friction and high-speed capability, and an extra light preload (Class A) for optimal rigidity and minimal rotational torque. Its compact design is engineered to handle combined loads efficiently, making it an ideal solution for high-reliability, high-speed machinery.

71910 ACE/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention

Code Segment Technical Meaning
71910 Basic bearing series and size designation
ACE Angular Contact design with 25° contact angle
HC Hybrid Ceramic balls for enhanced performance
P4A Ultra-precision tolerance class (superior to ABEC 7)
DGA Universal Matchable (SU) arrangement capability

71910 ACE/HCP4ADGA Bearing Structural Features & Performance Benefits

Hybrid Ceramic Construction: The combination of ceramic balls with chrome steel rings significantly reduces friction, heat generation, and wear, enabling higher limiting speeds (46,000 rpm) and extended service life.

Precision Engineering: Manufactured to P4A tolerance class standards, this bearing ensures exceptional running accuracy and minimal vibration for high-precision applications.

Universal Matching Capability: As a Universal Matchable (SU) bearing, it can be paired with another identical bearing in various configurations (back-to-back, face-to-face, or tandem) to optimize performance for specific load conditions.

Phenolic Cage Design: The phenolic resin cage provides excellent dimensional stability at high speeds, reduced weight, and superior lubrication retention compared to metal cages.

Optimized Contact Angle: The 25° contact angle provides an ideal balance between radial and axial load capacity, making it suitable for combined loading scenarios.

71910 ACE/HCP4ADGA Bearing Typical Application Areas

  • Machine Tool Spindles: High-speed machining centers and precision grinding spindles
  • High-Speed Motors: Electric motor spindles and servo motors requiring minimal vibration
  • Aerospace Components: Guidance systems, flight control actuators, and auxiliary power units
  • Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging systems
  • Semiconductor Manufacturing: Wafer handling robots and precision positioning stages
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