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Super Precision Angular Contact Ball Bearings S71920 ACB/P4ADGA

Super Precision Angular Contact Ball Bearings S71920 ACB/P4ADGA

The S71920 ACB/P4ADGA is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from high-grade chrome steel. It features a 25° contact angle and comes sealed for protection, with universal matching for versatile arrangements.

This bearing handles dynamic radial loads up to 7470 lbf and operates smoothly at speeds up to 10,000 RPM. Its phenolic cage ensures durability, while the extra light preload (Class A) offers precise performance.

The sealed design keeps lubrication in and contaminants out, making maintenance easier. It works well in temperatures from -30°C to 110°C and is ideal for high-precision applications like machine tools or spindles.

Weighing 1.76kg, this bearing is part of a matched set of two, suitable for back-to-back, face-to-face, or tandem configurations. Compliant with P4A tolerance standards, it’s interchangeable with SKF bearings for reliable replacements.

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Product Parameters

  • Part Number S71920 ACB/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 7.938 mm
  • Ball Qty 37
  • 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 7470 lbf
  • Static Radial Load 9562 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 10000 rpm
  • Weight 1.76 kg
Super Precision Angular Contact Ball Bearings S71920 ACB/P4ADGA dimension drawing
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Features

Performance Features of S71920 ACB/P4ADGA Bearing

S71920 ACB/P4ADGA Bearing is designed with a 25° contact angle, optimising load distribution for precision applications.
Its chrome steel rings and balls enhance durability, while the phenolic cage ensures smooth operation at high speeds.

The bearing’s extra light preload (Class A) reduces friction, making it suitable for high-speed applications up to 10,000 rpm.
Universal matching allows flexible arrangement options, including back-to-back and face-to-face configurations.

With a dynamic radial load capacity of 7470 lbf, S71920 ACB/P4ADGA Bearing handles demanding conditions reliably.
Its sealed design and grease lubrication minimise maintenance needs, ensuring long-term performance.

The P4A tolerance class guarantees precision, making it ideal for applications requiring high accuracy.
Operating between -30°C to 110°C, it performs consistently in varied environments.

Application

Industrial Uses of S71920 ACB/P4ADGA Bearing
S71920 ACB/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 industrial environments.

Where Is S71920 ACB/P4ADGA Bearing Used?
In robotics, S71920 ACB/P4ADGA Bearing supports articulated arms, providing smooth motion and low friction. Its universal matching feature allows flexible arrangement in complex assemblies.

Built for Heavy-Duty Use: S71920 ACB/P4ADGA Bearing
This bearing excels in aerospace applications, such as helicopter rotor systems, thanks to its phenolic cage and chrome steel construction. The extra-light preload ensures minimal vibration during high-speed operation.

Automotive vs Aerospace: Applications of S71920 ACB/P4ADGA Bearing
In automotive systems, S71920 ACB/P4ADGA Bearing enhances performance in electric vehicle motors, handling both radial and angular loads. For aerospace, its P4A tolerance class meets strict precision requirements in flight control mechanisms.

Perfect Fit for Automation: S71920 ACB/P4ADGA Bearing
S71920 ACB/P4ADGA Bearing is ideal for CNC machinery, where its grease lubrication reduces maintenance needs. The matched set configuration simplifies installation in automated production lines.

Q&A

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