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Super Precision Angular Contact Ball Bearings S71920 ACD/P4ATGC

Super Precision Angular Contact Ball Bearings S71920 ACD/P4ATGC

The S71920 ACD/P4ATGC is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from durable chrome steel. Its 25° contact angle and sealed design ensure smooth operation under angular loads.

With a dynamic radial load capacity of 27900 lbf, it handles high speeds up to 16250 RPM. The phenolic cage and grease lubrication offer reliable performance in temperatures from -30°C to 110°C.

This bearing comes in a matched set of three, suitable for universal arrangements like back-to-back or face-to-face mounting. Ideal for precision machinery, spindles, or high-speed applications where accuracy is key.

Weighing 2.44kg, it meets P4A tolerance standards for exceptional precision. Its interchangeable design with SKF bearings makes it a versatile choice for replacements.

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Product Parameters

  • Part Number S71920 ACD/P4ATGC
  • 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 60 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 3
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 27900 lbf
  • Static Radial Load 42750 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16250 rpm
  • Weight 2.44 kg
Super Precision Angular Contact Ball Bearings S71920 ACD/P4ATGC dimension drawing
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Features

Performance Features of S71920 ACD/P4ATGC Bearing

S71920 ACD/P4ATGC Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls enhance durability, supporting dynamic radial loads up to 27900 lbf.

The sealed design and grease lubrication ensure smooth operation, even at high speeds of 16,250 rpm.
Phenolic cage material reduces friction, contributing to quieter performance and longer service life.

With universal matching and moderate preload, S71920 ACD/P4ATGC Bearing offers versatility in various configurations.
Its precision P4A tolerance class ensures consistent performance in demanding environments.

Application

Super Precision Angular Contact Ball Bearings S71920 ACD/P4ATGC excels in high-speed machine tools, where its 25° contact angle ensures stable performance under radial and axial loads. The sealed design keeps contaminants out, extending service life in demanding industrial environments.

In aerospace applications, S71920 ACD/P4ATGC supports critical components like turbine shafts, thanks to its phenolic cage and grease lubrication. Its universal matching capability allows for flexible configurations in tight spaces.

For precision robotics, S71920 ACD/P4ATGC’s P4A tolerance class delivers the accuracy needed for smooth, repeatable movements. The chrome steel construction provides durability in automated assembly lines.

Medical imaging devices benefit from S71920 ACD/P4ATGC’s low vibration and high-speed capabilities. The moderate preload ensures consistent performance in sensitive diagnostic equipment.

In automotive testing rigs, S71920 ACD/P4ATGC handles both radial and thrust loads reliably. Its metric sizing makes it a versatile choice for European and Asian machinery designs.

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