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Super Precision Angular Contact Ball Bearings 71920 ACDGA/HCP4A

Super Precision Angular Contact Ball Bearings 71920 ACDGA/HCP4A

The 71920 ACDGA/HCP4A is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, measuring 20mm wide. Made from chrome steel and ceramic balls, it offers high performance with a 25° contact angle.

It handles dynamic radial loads up to 12870 lbf and spins smoothly at speeds up to 15000 RPM. The phenolic cage ensures durability, while the extra light preload enhances precision.

Its open design allows easy lubrication, and it operates well in temperatures from -30°C to 110°C. The bearing is universal matching, suitable for back-to-back, face-to-face, or tandem arrangements.

Ideal for high-precision applications like machine tools or spindles where accuracy is crucial. Weighing 0.67kg, it meets P4A tolerance standards for reliable performance.

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Product Parameters

  • Part Number 71920 ACDGA/HCP4A
  • 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 20 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 No
  • 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 12870 lbf
  • Static Radial Load 14175 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 15000 rpm
  • Weight 0.67 kg
Super Precision Angular Contact Ball Bearings 71920 ACDGA/HCP4A dimension drawing
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Features

Performance Features of 71920 ACDGA/HCP4A Bearing

71920 ACDGA/HCP4A Bearing is crafted with chrome steel rings and ceramic balls, offering high precision and durability.
Its 25° contact angle ensures efficient handling of combined radial and axial loads.
The phenolic cage maintains ball alignment, reducing friction and enhancing performance.
With a dynamic radial load capacity of 12870 lbf, it excels in demanding applications.

How Does 71920 ACDGA/HCP4A Bearing Achieve High-Speed Performance?

71920 ACDGA/HCP4A Bearing’s ceramic balls and precision design allow speeds up to 15,000 rpm.
The extra light preload ensures smooth operation, minimising vibration and noise.
Its open design facilitates easy lubrication, maintaining optimal performance.
The P4A tolerance class guarantees exceptional accuracy for high-speed applications.

Engineered for Precision: 71920 ACDGA/HCP4A Bearing

71920 ACDGA/HCP4A Bearing features a 25° contact angle, ideal for angular contact load scenarios.
The chrome steel rings and ceramic balls provide excellent wear resistance and longevity.
With a static radial load capacity of 14175 lbf, it handles heavy loads reliably.
Its universal matching capability allows flexible arrangement in back-to-back or face-to-face configurations.

Application

Essential Roles of 71920 ACDGA/HCP4A Bearing
71920 ACDGA/HCP4A Bearing is widely used in high-speed machine tools, where its precision angular contact design ensures accurate spindle rotation. The ceramic balls reduce friction, making it ideal for applications demanding smooth operation.

In robotics, 71920 ACDGA/HCP4A Bearing supports articulated arms, providing stability during rapid movements. Its phenolic cage offers lightweight durability, which is crucial for repetitive tasks in automated systems.

For aerospace components, 71920 ACDGA/HCP4A Bearing handles both radial and axial loads efficiently, thanks to its 25° contact angle. The P4A tolerance class guarantees consistent performance in critical flight systems.

Medical imaging devices benefit from 71920 ACDGA/HCP4A Bearing’s low vibration and high-speed capabilities. The chrome steel rings ensure long-term reliability in sensitive diagnostic equipment.

In electric vehicle motors, 71920 ACDGA/HCP4A Bearing’s extra-light preload reduces energy loss, enhancing overall efficiency. Its metric sizing simplifies integration into European and Asian automotive designs.

Q&A

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