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Super Precision Angular Contact Ball Bearings 71911 ACE/P4A

Super Precision Angular Contact Ball Bearings 71911 ACE/P4A

The 71911 ACE/P4A is a super precision angular contact ball bearing measuring 55mm by 80mm by 13mm, crafted from durable chrome steel. It handles radial loads up to 3330 lbf and spins smoothly at speeds up to 32,000 RPM.

With a 25° contact angle and open design, it offers excellent performance for angular loads. The phenolic cage ensures quiet operation and long service life.

This bearing is ideal for high-speed applications like machine tool spindles or precision instruments. Its P4 tolerance class guarantees exceptional accuracy.

Weighing just 0.17kg, it’s lightweight yet robust. It comes pre-lubricated and operates in temperatures from -30°C to 110°C. Interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 71911 ACE/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 21
  • Contact Angle 25°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 3330 lbf
  • Static Radial Load 2250 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 32000 rpm
  • Weight 0.17 kg
  • Price（$） 439.812
Super Precision Angular Contact Ball Bearings 71911 ACE/P4A dimension drawing
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Features

Why Choose 71911 ACE/P4A Bearing for Precision Tasks?

71911 ACE/P4A Bearing features a 25° contact angle, optimised for high-precision angular contact applications.
Its chrome steel rings and balls ensure durability and smooth operation under dynamic radial loads up to 3330 lbf.

The phenolic cage maintains ball alignment, reducing friction and noise during high-speed rotation.
With a maximum speed of 32,000 rpm, it delivers reliable performance in demanding conditions.

71911 ACE/P4A Bearing operates efficiently within a temperature range of -30° to 110°C.
Its P4 tolerance class guarantees precision, making it suitable for critical applications.

Application

How Does 71911 ACE/P4A Bearing Improve Performance?
71911 ACE/P4A Bearing is commonly used in high-speed machine tools, where its 25° contact angle helps manage both radial and axial loads efficiently. The open design and phenolic cage contribute to reduced friction, making it suitable for precision applications.

In robotics, 71911 ACE/P4A Bearing ensures smooth movement in articulated arms, thanks to its P4 tolerance class. The chrome steel construction provides durability, even in continuous operation scenarios.

For medical imaging devices, 71911 ACE/P4A Bearing offers reliable performance due to its consistent load handling. The lubricated design ensures quiet operation, which is essential in sensitive environments.

Automotive applications like electric motor shafts benefit from 71911 ACE/P4A Bearing’s high-speed capabilities. Its metric sizing and compatibility with SKF models make it a versatile choice for various vehicle designs.

Q&A

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