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Super Precision Angular Contact Ball Bearings S71911 ACDTP/P4B

Super Precision Angular Contact Ball Bearings S71911 ACDTP/P4B

The S71911 ACDTP/P4B is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 4095 lbf and operates smoothly at speeds up to 15,000 RPM.

Its sealed design keeps lubrication in and contaminants out, while the phenolic cage ensures durability. The 25° contact angle makes it ideal for handling combined radial and axial loads.

This bearing comes preloaded and matched for precise performance, meeting P4 (ABEC-7) tolerance standards. It works well in temperatures from -30°C to 110°C.

Perfect for high-precision applications like machine tool spindles or high-speed robotics, where accuracy and reliability are key. Weighing just 0.18kg, it’s lightweight yet robust for demanding environments.

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Product Parameters

  • Part Number S71911 ACDTP/P4B
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 55 mm
  • Bore Dia Tolerance -0.007mm to 0
  • Outer Dia 80 mm
  • Outer Dia Tolerance -0.007mm to 0
  • Width 13 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 23
  • Contact Angle 25°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement Available
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 4095 lbf
  • Static Radial Load 3082 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 15000 rpm
  • Weight 0.18 kg
  • Price（$） 527.661
Super Precision Angular Contact Ball Bearings S71911 ACDTP/P4B dimension drawing
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Features

Why Choose S71911 ACDTP/P4B Bearing for Precision Tasks?

S71911 ACDTP/P4B Bearing features a 25° contact angle, ideal for handling combined radial and axial loads with high precision.
Its P4 tolerance class ensures minimal deviation, making it suitable for applications requiring exacting standards.

The phenolic cage in S71911 ACDTP/P4B Bearing reduces friction and noise, enhancing operational smoothness.
With a maximum speed of 15,000 rpm, it delivers reliable performance in high-speed scenarios.

Chrome steel rings and balls in S71911 ACDTP/P4B Bearing provide durability and resistance to wear.
This bearing is preloaded and available in matched sets, offering flexibility for various installation needs.

S71911 ACDTP/P4B Bearing operates efficiently within a temperature range of -30° to 110°C.
Its sealed design helps maintain lubrication, reducing maintenance requirements.

Application

Ideal for Precision: S71911 ACDTP/P4B Bearing
S71911 ACDTP/P4B Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The sealed construction keeps contaminants out, extending service life in demanding environments.
In robotics, S71911 ACDTP/P4B Bearing provides smooth motion control for articulated arms, thanks to its phenolic cage reducing friction. Its P4 tolerance class makes it suitable for applications requiring minimal vibration.
For medical imaging devices, S71911 ACDTP/P4B Bearing’s chrome steel components offer reliable performance under consistent radial loads. The lubricated design ensures quiet operation, critical in sensitive diagnostic equipment.

Where Is S71911 ACDTP/P4B Bearing Used?
You’ll often find S71911 ACDTP/P4B Bearing in CNC machining centres, where its 25° contact angle handles combined loads efficiently. The matched arrangement option allows for custom preload settings to suit specific applications.
In aerospace components, S71911 ACDTP/P4B Bearing’s high-speed capability (up to 15,000 rpm) makes it ideal for turbine systems. Its temperature resistance ensures stable performance across varying operational conditions.

Built for Heavy-Duty Use: S71911 ACDTP/P4B Bearing
S71911 ACDTP/P4B Bearing excels in industrial pumps, withstanding both radial and axial forces simultaneously. The chrome steel construction provides excellent wear resistance in continuous operation scenarios.
For automation equipment, S71911 ACDTP/P4B Bearing’s low-maintenance design reduces downtime in production lines. Its consistent performance makes it a reliable choice for high-cycle applications.

Automotive vs Aerospace: Applications of S71911 ACDTP/P4B Bearing
In automotive transmissions, S71911 ACDTP/P4B Bearing handles high rotational speeds while maintaining precision. The metric sizing ensures compatibility with European and Asian vehicle designs.
For aircraft landing gear systems, S71911 ACDTP/P4B Bearing’s durability under extreme conditions proves invaluable. Its lightweight design (0.18 kg) helps meet strict aerospace weight requirements without compromising performance.

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