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Super Precision Angular Contact Ball Bearings S71911 ACB/P4ADGA

Super Precision Angular Contact Ball Bearings S71911 ACB/P4ADGA

The S71911 ACB/P4ADGA is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, crafted from durable chrome steel. It features a 25° contact angle and comes sealed for protection, with a phenolic cage for smooth operation.

This bearing handles radial loads up to 3442 lbf and reaches speeds of 34,000 RPM, thanks to its grease lubrication. Its extra-light preload ensures minimal friction, ideal for high-precision applications.

The universal matching design allows flexible arrangements like back-to-back or face-to-face, making it versatile for complex setups. Weighing 0.38kg, it’s suitable for machine tools or spindles where accuracy is key.

With a temperature range of -30°C to 110°C, it performs reliably in various conditions. Compliant with P4A tolerance standards, it’s interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number S71911 ACB/P4ADGA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 55 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 80 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 26 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 5.556 mm
  • Ball Qty 28
  • 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 3442 lbf
  • Static Radial Load 3442 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.38 kg
Super Precision Angular Contact Ball Bearings S71911 ACB/P4ADGA dimension drawing
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Features

Performance Features of S71911 ACB/P4ADGA Bearing

S71911 ACB/P4ADGA Bearing is designed with a 25° contact angle, optimising load distribution for precision applications.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and noise.

The bearing supports dynamic radial loads up to 3442 lbf, making it suitable for high-performance machinery.
With a maximum speed of 34,000 rpm, it delivers smooth operation in demanding conditions.

S71911 ACB/P4ADGA Bearing comes pre-greased and sealed, reducing maintenance needs.
Its universal matching design allows flexible arrangement options for various applications.

Application

Industrial Uses of S71911 ACB/P4ADGA Bearing
S71911 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 environments.

Where Is S71911 ACB/P4ADGA Bearing Used?
In robotics, S71911 ACB/P4ADGA Bearing supports articulated arms, providing smooth motion and low friction. Its phenolic cage reduces weight while maintaining strength, ideal for repetitive movements.

Perfect Fit for Automation: S71911 ACB/P4ADGA Bearing
S71911 ACB/P4ADGA Bearing works well in automated production lines, thanks to its universal matching capability. The extra-light preload ensures quiet operation in high-speed applications.

Medical vs Industrial: Where S71911 ACB/P4ADGA Bearing Excels
For medical imaging devices, S71911 ACB/P4ADGA Bearing offers reliable performance with minimal vibration. In industrial settings, its P4A tolerance class guarantees precision for spindle drives.

Light-Duty vs Heavy-Duty: Best Uses for S71911 ACB/P4ADGA Bearing
S71911 ACB/P4ADGA Bearing handles light-duty tasks like dental drills with ease. In heavier applications, such as CNC machinery, its chrome steel construction withstands continuous use.

Q&A

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