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Super Precision Angular Contact Ball Bearings S71911 FE/HCP4AQGA

Super Precision Angular Contact Ball Bearings S71911 FE/HCP4AQGA

The S71911 FE/HCP4AQGA is a super precision angular contact ball bearing measuring 55mm by 80mm by 52mm, crafted from chrome steel with ceramic balls for enhanced durability. It handles radial loads up to 9068 lbf and operates smoothly at speeds up to 34,000 RPM.

Its sealed design and phenolic cage ensure minimal friction and long service life, even in demanding conditions. The bearing comes pre-greased and works well in temperatures from -30°C to 110°C.

This model is part of a universal matching set of four bearings, suitable for back-to-back, face-to-face, or tandem arrangements. Ideal for high-precision applications like machine tool spindles or high-speed motors.

Weighing 0.59kg, it offers a balance of strength and precision. Compliant with P4A tolerance class for exceptional accuracy.

The 18° contact angle provides stable performance under angular loads. Its interchangeable design with SKF bearings makes it a versatile choice for replacements.

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Product Parameters

  • Part Number S71911 FE/HCP4AQGA
  • 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 52 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 21
  • Contact Angle 18°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement Universal matching
  • Number Of Bearings In Matched Set 4
  • 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 Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 9068 lbf
  • Static Radial Load 9338 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.59 kg
Super Precision Angular Contact Ball Bearings S71911 FE/HCP4AQGA dimension drawing
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Features

Performance Features of S71911 FE/HCP4AQGA Bearing

S71911 FE/HCP4AQGA Bearing is designed with a 18° contact angle, optimising load distribution for angular contact applications.
The ceramic balls and chrome steel rings enhance durability while reducing friction.

With a dynamic radial load capacity of 9068 lbf, S71911 FE/HCP4AQGA Bearing handles high-speed operations up to 34,000 rpm.
Its phenolic cage ensures smooth performance and minimal wear over time.

S71911 FE/HCP4AQGA Bearing operates efficiently in temperatures ranging from -30°C to 110°C.
The sealed design and grease lubrication reduce maintenance needs, making it a reliable choice.

Universal matching allows flexible arrangement options, including back-to-back and face-to-face configurations.
This versatility makes S71911 FE/HCP4AQGA Bearing suitable for various precision applications.

Application

Key Fields for S71911 FE/HCP4AQGA Bearing
S71911 FE/HCP4AQGA Bearing is commonly used in high-speed machine spindles, where its precision and ceramic balls reduce friction for smoother operation. The sealed design helps maintain lubrication in demanding industrial environments.

In robotics, S71911 FE/HCP4AQGA Bearing ensures accurate movement in articulated arms, thanks to its angular contact design and universal matching capability. The phenolic cage adds durability while keeping weight low.

For medical imaging devices, S71911 FE/HCP4AQGA Bearing’s P4A tolerance class provides the consistency needed for precise component alignment. Its grease lubrication ensures quiet operation, which is essential in sensitive medical settings.

Automotive applications like electric vehicle motors benefit from S71911 FE/HCP4AQGA Bearing’s ability to handle both radial and axial loads efficiently. The extra light preload also minimises energy loss during high-speed rotation.

Q&A

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