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Super Precision Angular Contact Ball Bearings 71814 ACD/P4QBCC

Super Precision Angular Contact Ball Bearings 71814 ACD/P4QBCC

The 71814 ACD/P4QBCC is a super precision angular contact ball bearing with a 70mm bore and 90mm outer diameter, crafted from durable chrome steel. Its 25° contact angle efficiently handles combined radial and thrust loads, with a dynamic radial load capacity of 7762 lbf.

The open design and phenolic cage ensure smooth operation at high speeds, up to 28,000 RPM, while the moderate preload (Class C) enhances stability. It comes as a matched set of four bearings for balanced performance.

Ideal for precision applications like machine tool spindles or high-speed robotics, this bearing operates reliably between -30°C and 110°C. Weighing 0.54kg, it’s a robust yet lightweight choice for demanding setups.

Compatible with SKF equivalents, it offers a practical replacement option. The lubricated design reduces maintenance needs, making it user-friendly for engineers and technicians.

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Product Parameters

  • Part Number 71814 ACD/P4QBCC
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 70 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 90 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 40 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 5.556 mm
  • Ball Qty 31
  • Contact Angle 25°
  • Tolerance Class P4
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 4 bearings <<>> QBC
  • Number Of Bearings In Matched Set 4
  • Universal Matching Bearing No
  • Preload Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 7762 lbf
  • Static Radial Load 13500 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 28000 rpm
  • Weight 0.54 kg
Super Precision Angular Contact Ball Bearings 71814 ACD/P4QBCC dimension drawing
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Features

Performance Features of 71814 ACD/P4QBCC Bearing

71814 ACD/P4QBCC Bearing is designed with a 25° contact angle, ideal for handling combined radial and axial loads.
Its chrome steel rings and balls ensure durability and smooth operation under high-speed conditions.

The phenolic cage maintains ball alignment, reducing friction and enhancing performance.
With a maximum speed of 28,000 rpm, it excels in precision applications requiring high rotational accuracy.

71814 ACD/P4QBCC Bearing’s dynamic radial load capacity of 7762 lbf ensures reliability in demanding environments.
The moderate preload (Class C) further enhances stability and reduces vibration during operation.

Application

Industrial Uses of 71814 ACD/P4QBCC Bearing
The 71814 ACD/P4QBCC Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate alignment under radial and axial loads. Its moderate preload and P4 tolerance class make it suitable for applications demanding tight control.

What Makes 71814 ACD/P4QBCC Bearing a Preferred Choice?
In robotics and automation, 71814 ACD/P4QBCC Bearing excels in articulated arms and precision gearboxes, thanks to its phenolic cage reducing friction at high speeds. The matched set arrangement further enhances stability in dynamic operations.

Built for Heavy-Duty Use: 71814 ACD/P4QBCC Bearing
This bearing is ideal for aerospace applications, such as helicopter rotor systems, where its chrome steel construction handles extreme loads and temperatures. The open design allows for efficient lubrication, prolonging service life.

Automotive vs Aerospace: Applications of 71814 ACD/P4QBCC Bearing
In automotive transmissions, 71814 ACD/P4QBCC Bearing supports smooth gear shifts with its high-speed capability. Meanwhile, in aerospace, its precision and durability ensure reliable performance in critical flight components.

Essential Roles of 71814 ACD/P4QBCC Bearing
For medical imaging devices like MRI scanners, 71814 ACD/P4QBCC Bearing provides quiet and vibration-free operation. Its phenolic cage and chrome steel balls contribute to long-term reliability in sensitive environments.

Q&A

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