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Super Precision Angular Contact Ball Bearings 71814 ACD/P4QBCA

Super Precision Angular Contact Ball Bearings 71814 ACD/P4QBCA

The 71814 ACD/P4QBCA is a super precision angular contact ball bearing with a 70mm bore and 90mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 7762 lbf and operates smoothly at high speeds, reaching up to 28,000 RPM.

With a 25° contact angle and extra light preload, it offers precise performance for demanding applications. The open design and phenolic cage ensure durability and easy maintenance.

This bearing comes in a matched set of four, ideal for applications requiring high accuracy, such as machine tools or spindle systems. It works well in temperatures from -30°C to 110°C.

Weighing 0.54kg, it’s a robust yet lightweight solution for precision engineering needs. Compliant with P4 tolerance standards, it’s interchangeable with SKF bearings for reliable replacements.

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Product Parameters

  • Part Number 71814 ACD/P4QBCA
  • 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 Extra light / Class A
  • 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/P4QBCA dimension drawing
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Features

Performance Features of 71814 ACD/P4QBCA Bearing

71814 ACD/P4QBCA Bearing is designed with a 25° contact angle, optimising load distribution for precision applications.
Its chrome steel rings and balls enhance durability, while the phenolic cage ensures smooth operation at high speeds.

With a dynamic radial load capacity of 7762 lbf, it handles demanding tasks efficiently.
The extra light preload (Class A) minimises friction, contributing to its high-speed performance of up to 28,000 rpm.

The matched arrangement of four bearings (QBC) provides stability in angular contact applications.
Its tight tolerances (P4 class) ensure reliable performance in precision machinery.

Operating between -30°C to 110°C, 71814 ACD/P4QBCA Bearing suits various industrial environments.
The open design allows for easy lubrication, maintaining optimal performance over time.

Application

Industrial Uses of 71814 ACD/P4QBCA Bearing
71814 ACD/P4QBCA Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The matched arrangement of four bearings provides stability in demanding industrial environments.

In automotive applications, 71814 ACD/P4QBCA Bearing supports high-speed components like turbochargers and transmission systems. Its extra light preload helps reduce friction, improving overall efficiency.

For medical imaging devices, 71814 ACD/P4QBCA Bearing’s phenolic cage and chrome steel construction offer reliable performance. The P4 tolerance class ensures smooth operation in sensitive equipment.

Automation systems benefit from 71814 ACD/P4QBCA Bearing’s ability to handle both radial and axial loads. Its high-speed capability makes it suitable for robotic arms and CNC machinery.

In aerospace applications, 71814 ACD/P4QBCA Bearing’s precision and durability are essential for flight control systems. The temperature range allows it to perform reliably in varying conditions.

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