71913 ACD/HCP4ADGA

Hybrid Ceramic Super Precision Bearings

71913 ACD/HCP4ADGA Hybrid Ceramic Super Precision Bearings
71913 ACD/HCP4ADGA Hybrid Ceramic Super Precision Bearings

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Part No.
Part No. 71913 ACD/HCP4ADGA

Basic Information

System of measurement Metric
Weight 0.35 kg
Tolerance class P4A
Seal type Open
For load direction Angular Contact

Main Dimensions

Bore diameter 65 mm
Bore diameter tolerance -0.004mm to 0
Outside diameter 90 mm
Outside diameter tolerance -0.004mm to 0
Width 26 mm
Width tolerance -0.2mm to 0
Contact angle 25 °

Ball & Washer Dimensions

Ball diameter 7.938 mm
Ball quantity 26

Performance

Temperature range - 30°C to 110 °C
Radial dynamic load rating 7178 lbf
Radial static load rating 7200 lbf
Limiting speed 36 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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71913 ACD/HCP4ADGA Bearing Product Overview & Core Advantages

The 71913 ACD/HCP4ADGA is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This universal matchable (SU) bearing features a P4A tolerance class for superior dimensional stability and running accuracy. Its ceramic ball construction and phenolic cage enable outstanding high-speed capabilities up to 36,000 rpm, while the 25° contact angle provides optimal performance under combined radial and axial loads. The extra light preload (Class A) ensures smooth operation with minimal friction, making it ideal for high-precision, high-reliability applications.

71913 ACD/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention

Code Segment Technical Meaning
71913 Basic bearing series with 65mm bore, 90mm OD
ACD 25° contact angle design
HC Hybrid ceramic balls
P4A High precision tolerance class
DGA Universal matchable (SU) designation

71913 ACD/HCP4ADGA Bearing Structural Features & Performance Benefits

Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces friction and heat generation, enabling superior high-speed performance and extended service life.

Precision Engineering: Manufactured to P4A tolerance class standards, this bearing delivers exceptional running accuracy and dimensional stability for critical applications.

Optimized Load Capacity: The 25° contact angle provides excellent performance under combined radial and axial loads, while the phenolic cage ensures stable operation at high speeds.

Universal Matchability: As an SU universal matchable bearing, it can be paired with identical bearings in various configurations (DB, DF, DT) to meet specific application requirements without additional machining.

High-Speed Capability: The lightweight phenolic cage and ceramic balls contribute to a limiting speed of 36,000 rpm, making it suitable for demanding high-speed applications.

71913 ACD/HCP4ADGA Bearing Typical Application Areas

  • Machine tool spindles and high-precision machining centers
  • High-speed motors and spindle drives
  • Precision instrumentation and measuring equipment
  • Aerospace components and aviation systems
  • Medical equipment and dental handpieces
  • Robotics and automation systems
  • Semiconductor manufacturing equipment
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