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Super Precision Angular Contact Ball Bearings S71911 ACEGA/HCP4A

Super Precision Angular Contact Ball Bearings S71911 ACEGA/HCP4A

The S71911 ACEGA/HCP4A is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, designed for high-speed applications. Its 25° contact angle and ceramic balls ensure smooth operation under radial loads up to 3330 lbf.

The sealed design keeps grease in and contaminants out, while the phenolic cage offers durability. With a maximum speed of 34,000 RPM, it’s suited for demanding environments like machine tools or spindles.

This bearing comes with an extra-light preload (Class A) for precise performance. It can be paired in back-to-back, face-to-face, or tandem arrangements for versatile use. Compliant with P4A tolerance standards, it’s a reliable choice for precision engineering.

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Product Parameters

  • Part Number S71911 ACEGA/HCP4A
  • 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 13 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 21
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement No
  • 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 Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 3330 lbf
  • Static Radial Load 2250 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.15 kg
Super Precision Angular Contact Ball Bearings S71911 ACEGA/HCP4A dimension drawing
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Features

Performance Features of S71911 ACEGA/HCP4A Bearing

S71911 ACEGA/HCP4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.

The ceramic balls and chrome steel rings reduce friction, enhancing precision and speed capabilities.

With a dynamic radial load capacity of 3330 lbf, it handles demanding conditions reliably.

Its phenolic cage ensures smooth operation at high speeds up to 34,000 rpm.

Application

Super Precision Angular Contact Ball Bearings S71911 ACEGA/HCP4A is commonly used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction for smoother operation. The sealed design helps keep contaminants out, extending its lifespan in demanding environments.

In robotics, S71911 ACEGA/HCP4A provides reliable angular contact support for precise movements in robotic arms and automated systems. Its extra-light preload ensures minimal resistance, which is ideal for repetitive tasks.

For medical imaging devices, S71911 ACEGA/HCP4A’s P4A tolerance class delivers the accuracy needed for stable performance. The grease lubrication and wide temperature range make it suitable for continuous use in diagnostic equipment.

In aerospace applications, S71911 ACEGA/HCP4A handles both radial and axial loads efficiently, making it a dependable choice for flight control systems. The universal matching feature allows for flexible configurations in tight spaces.

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