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Super Precision Angular Contact Ball Bearings 71920 ACD/HCP4ADGA

Super Precision Angular Contact Ball Bearings 71920 ACD/HCP4ADGA

The 71920 ACD/HCP4ADGA is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from durable chrome steel and ceramic balls. It handles radial loads up to 20768 lbf and reaches speeds of 15000 RPM, making it suitable for high-performance applications.

Its phenolic cage and universal matching design allow flexible arrangements like back-to-back or face-to-face, ensuring smooth operation under angular loads. The extra light preload (Class A) enhances precision while reducing friction.

This bearing works in temperatures from -30°C to 110°C and comes pre-lubricated for immediate use. Ideal for machine tools, spindles, or other high-speed equipment where accuracy is crucial.

Weighing 1.34kg, it’s robust yet manageable for its size. Interchangeable with SKF bearings, it’s a reliable choice for replacements or upgrades. Compliant with P4A tolerance standards for consistent performance.

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Product Parameters

  • Part Number 71920 ACD/HCP4ADGA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 100 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 140 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 40 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 12.7 mm
  • Ball Qty 26
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Universal matching
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 20768 lbf
  • Static Radial Load 28125 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 15000 rpm
  • Weight 1.34 kg
Super Precision Angular Contact Ball Bearings 71920 ACD/HCP4ADGA dimension drawing
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Features

How Does 71920 ACD/HCP4ADGA Bearing Achieve Super Precision?

71920 ACD/HCP4ADGA Bearing features a 25° contact angle, optimised for high-precision angular contact applications.

Its chrome steel rings and ceramic balls reduce friction, ensuring smooth operation even at speeds up to 15,000 rpm.

The phenolic cage maintains ball alignment, enhancing durability and performance under dynamic radial loads of 20,768 lbf.

With universal matching and extra light preload, it offers versatility in back-to-back or face-to-face arrangements.

Application

Super Precision Angular Contact Ball Bearings 71920 ACD/HCP4ADGA excel in high-speed machine tool spindles, where their 25° contact angle ensures smooth rotation under radial and axial loads. The ceramic balls reduce friction, making them ideal for precision grinding applications.

In robotics, 71920 ACD/HCP4ADGA supports articulated arms, providing stability and accuracy in repetitive movements. The universal matching design allows flexible arrangement, adapting to various load requirements.

For aerospace components, 71920 ACD/HCP4ADGA’s phenolic cage and chrome steel rings withstand extreme conditions while maintaining performance. Its extra-light preload ensures minimal vibration in critical systems.

Automotive testing equipment benefits from 71920 ACD/HCP4ADGA’s high dynamic load capacity, ensuring reliable data collection during endurance trials. The P4A tolerance class guarantees consistent results.

In medical imaging devices, 71920 ACD/HCP4ADGA’s low heat generation and quiet operation enhance patient comfort. The lubricated design extends service life, reducing maintenance needs.

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