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Super Precision Angular Contact Ball Bearings S71911 CD/P4ADGA

Super Precision Angular Contact Ball Bearings S71911 CD/P4ADGA

The S71911 CD/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 15° contact angle and comes sealed for protection, with universal matching for flexible arrangement options.

This bearing handles radial loads up to 7020 lbf and spins smoothly at high speeds, reaching up to 34,000 RPM. Its phenolic cage ensures quiet operation and long service life, even in temperatures ranging from -30°C to 110°C.

The extra light preload (Class A) enhances precision, making it ideal for applications requiring high accuracy. It’s commonly used in machine tools, spindles, or other high-speed equipment where reliability is key.

Weighing 0.37kg, it’s part of a matched set of two bearings, suitable for back-to-back, face-to-face, or tandem configurations. Compliant with P4A tolerance standards for consistent performance.

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Product Parameters

  • Part Number S71911 CD/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 7.938 mm
  • Ball Qty 23
  • Contact Angle 15°
  • 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 7020 lbf
  • Static Radial Load 6525 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.37 kg
  • Price（$） 218.52
Super Precision Angular Contact Ball Bearings S71911 CD/P4ADGA dimension drawing
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Features

Performance Features of S71911 CD/P4ADGA Bearing

S71911 CD/P4ADGA Bearing is designed with a 15° 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 supports dynamic radial loads up to 7020 lbf, making it suitable for demanding tasks.
With a maximum speed of 34,000 rpm, it balances performance and reliability in high-speed environments.

S71911 CD/P4ADGA Bearing comes pre-lubricated with grease, reducing maintenance needs.
Its sealed design protects against contaminants, ensuring consistent performance in various conditions.

The universal matching feature allows flexible arrangement options, including back-to-back and face-to-face configurations.
This adaptability makes it ideal for complex machinery requiring precise angular contact solutions.

Application

Industrial Uses of S71911 CD/P4ADGA Bearing
S71911 CD/P4ADGA Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The sealed construction helps maintain performance in environments with dust or debris.

In automotive applications, S71911 CD/P4ADGA Bearing supports components like electric motors and gearboxes, thanks to its high-speed capability and extra-light preload. Its universal matching feature allows for flexible installation in various configurations.

For medical imaging devices, S71911 CD/P4ADGA Bearing’s phenolic cage and chrome steel construction provide reliable, low-noise operation. The P4A tolerance class ensures the precision needed for sensitive diagnostic equipment.

Automation systems benefit from S71911 CD/P4ADGA Bearing’s ability to handle both radial and axial loads in robotic arms. The grease lubrication ensures smooth movement even during continuous operation.

In consumer electronics like high-end printers, S71911 CD/P4ADGA Bearing’s compact size and high-speed performance contribute to quieter, more efficient operation. The temperature range makes it suitable for prolonged use in various conditions.

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