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Super Precision Angular Contact Ball Bearings S71920 ACD/P4ADGA

Super Precision Angular Contact Ball Bearings S71920 ACD/P4ADGA

The S71920 ACD/P4ADGA is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 20768 lbf and spins smoothly at speeds up to 10000 RPM.

Its sealed design keeps grease in and contaminants out, while the phenolic cage ensures quiet, long-lasting performance. The bearing operates reliably in temperatures from -30°C to 110°C.

This model comes in a matched set of two, allowing flexible arrangements like back-to-back or face-to-face. Ideal for high-precision applications like machine tools or spindles where accuracy is key.

Weighing 1.63kg, it’s robust yet manageable for its size. Compliant with P4A tolerance standards for exceptional precision.

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Product Parameters

  • Part Number S71920 ACD/P4ADGA
  • 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 Sealed
  • 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 Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 20768 lbf
  • Static Radial Load 28125 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 10000 rpm
  • Weight 1.63 kg
Super Precision Angular Contact Ball Bearings S71920 ACD/P4ADGA dimension drawing
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Features

Performance Features of S71920 ACD/P4ADGA Bearing

S71920 ACD/P4ADGA Bearing is crafted with chrome steel rings and balls, ensuring high precision and durability.
Its 25° contact angle provides excellent angular contact load capacity, suitable for demanding applications.

The sealed design and phenolic cage enhance performance by reducing contamination and wear.
With a dynamic radial load of 20768 lbf, it handles heavy loads efficiently.

S71920 ACD/P4ADGA Bearing operates smoothly at speeds up to 10,000 rpm, maintaining reliability.
Its universal matching capability allows flexible arrangement options for various setups.

The extra light preload ensures minimal friction, enhancing operational efficiency.
With a temperature range of -30°C to 110°C, it performs well in diverse environments.

Application

Industrial Uses of S71920 ACD/P4ADGA Bearing
S71920 ACD/P4ADGA Bearing is commonly used in high-precision machine tools, where its 25° contact angle ensures accurate radial and axial load handling. The sealed design keeps contaminants out, extending service life in demanding workshop conditions.

In robotics, S71920 ACD/P4ADGA Bearing provides smooth motion control for articulated arms, thanks to its phenolic cage reducing friction at high speeds. The universal matching feature simplifies installation in complex automated systems.

For medical imaging devices, S71920 ACD/P4ADGA Bearing’s P4A tolerance class delivers the quiet operation needed for sensitive diagnostics. Its grease lubrication maintains consistent performance across temperature fluctuations in hospital environments.

Automotive vs Aerospace: Applications of S71920 ACD/P4ADGA Bearing
In automotive testing rigs, S71920 ACD/P4ADGA Bearing handles combined loads during durability simulations, with its chrome steel construction resisting wear. The extra light preload ensures responsive performance in dynamic conditions.

Aerospace applications benefit from S71920 ACD/P4ADGA Bearing’s matched set configuration, providing stability in aircraft hydraulic pumps. Its 10,000 rpm rating meets the demands of auxiliary power units while maintaining precision.

Q&A

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