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Super Precision Angular Contact Ball Bearings S71911 ACD/P4A

Super Precision Angular Contact Ball Bearings S71911 ACD/P4A

The S71911 ACD/P4A is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 4095 lbf and reaches speeds of 15000 RPM smoothly.

With a 25° contact angle and sealed design, it offers reliable performance in high-speed applications. The phenolic cage ensures quiet operation and longevity.

This bearing comes preloaded and matched for precision, making it ideal for machine tools or spindle drives. It operates well in temperatures from -30°C to 110°C.

Weighing just 0.18kg, it’s lightweight yet robust. Compliant with P4 tolerance standards, it’s interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number S71911 ACD/P4A
  • 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（$） 528.246
Super Precision Angular Contact Ball Bearings S71911 ACD/P4A dimension drawing
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Features

Performance Features of S71911 ACD/P4A Bearing

S71911 ACD/P4A Bearing is crafted with chrome steel rings and balls, ensuring durability and precision.
Its 25° contact angle allows for efficient handling of combined radial and axial loads.
The phenolic cage maintains ball alignment, reducing friction and enhancing performance.
With a dynamic radial load capacity of 4095 lbf, it suits high-demand applications.

How Is S71911 ACD/P4A Bearing Engineered for Reliability?

S71911 ACD/P4A Bearing features sealed construction, protecting against contaminants and extending service life.
Precision P4 tolerance ensures smooth operation, ideal for high-speed applications up to 15,000 rpm.
The lubricated design minimises maintenance needs while optimising performance.
Its chrome steel composition resists wear, even under heavy loads.

Built for Precision: S71911 ACD/P4A Bearing

S71911 ACD/P4A Bearing’s matched arrangement option provides consistent performance in paired installations.
The 23-ball design distributes loads evenly, reducing stress on individual components.
With a temperature range of -30° to 110°C, it performs reliably in varied conditions.
Its compact 55mm×80mm×13mm size makes it suitable for space-constrained applications.

Application

Essential Roles of S71911 ACD/P4A Bearing
S71911 ACD/P4A Bearing is widely 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 ACD/P4A Bearing Used?
In automotive applications, S71911 ACD/P4A Bearing supports high-speed spindle systems, thanks to its P4 tolerance class and phenolic cage. Its matched arrangement option also makes it suitable for paired bearing setups in gearboxes.

Optimized for Performance: S71911 ACD/P4A Bearing
For robotics and automation, S71911 ACD/P4A Bearing offers smooth motion control with minimal friction. The chrome steel construction provides durability, while the lubricated design ensures consistent performance over time.

Medical vs Industrial: Where S71911 ACD/P4A Bearing Excels
S71911 ACD/P4A Bearing is ideal for medical imaging devices, where precision and reliability are critical. In industrial settings, it excels in high-speed pumps and compressors, handling both radial and axial loads efficiently.

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