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Super Precision Angular Contact Ball Bearings 71932 ACD/P4AQBCA

Super Precision Angular Contact Ball Bearings 71932 ACD/P4AQBCA

The 71932 ACD/P4AQBCA is a super precision angular contact ball bearing with a 160mm bore and 220mm outer diameter, crafted from high-quality chrome steel. Its 25° contact angle and extra light preload ensure smooth operation under angular loads.

This bearing can handle dynamic radial loads up to 73125 lbf and spins efficiently at speeds up to 11000 RPM. The phenolic cage adds durability while keeping the weight manageable at 10.8kg.

Designed as part of a matched set of four bearings (QBC arrangement), it offers consistent performance in high-precision applications. Ideal for machine tools or spindle systems where accuracy and reliability are key.

With a temperature range of -30°C to 110°C, it suits various industrial environments. Its open design allows for easy lubrication and maintenance. Interchangeable with SKF bearings for convenient replacements.

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Product Parameters

  • Part Number 71932 ACD/P4AQBCA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 160 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 220 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 112 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 19.05 mm
  • Ball Qty 28
  • Contact Angle 25°
  • Tolerance Class P4A
  • 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 73125 lbf
  • Static Radial Load 137250 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 11000 rpm
  • Weight 10.8 kg
  • Price（$） 281.349
Super Precision Angular Contact Ball Bearings 71932 ACD/P4AQBCA dimension drawing
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Features

How Does 71932 ACD/P4AQBCA Bearing Ensure Precision Performance?

71932 ACD/P4AQBCA Bearing features a 25° contact angle, optimised for high-precision angular contact applications.
The chrome steel rings and balls provide excellent durability, supporting dynamic radial loads up to 73125 lbf.

With a phenolic cage, 71932 ACD/P4AQBCA Bearing maintains ball alignment for smooth operation at speeds up to 11,000 rpm.
Its P4A tolerance class ensures consistent performance in demanding conditions.

The matched arrangement of four bearings offers extra light preload, enhancing stability and accuracy.
71932 ACD/P4AQBCA Bearing operates efficiently within a temperature range of -30°C to 110°C.

Application

Industrial Uses of 71932 ACD/P4AQBCA Bearing
71932 ACD/P4AQBCA Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The phenolic cage reduces friction, making it suitable for long operational cycles.

Where Is 71932 ACD/P4AQBCA Bearing Used?
You’ll often find 71932 ACD/P4AQBCA Bearing in aerospace applications, such as helicopter rotor systems, due to its ability to handle both radial and axial loads. Its P4A tolerance class guarantees consistent performance in demanding conditions.

Built for Heavy-Duty Use: 71932 ACD/P4AQBCA Bearing
71932 ACD/P4AQBCA Bearing excels in industrial gearboxes, where its extra light preload ensures smooth operation under heavy loads. The chrome steel construction provides durability in harsh environments.

Automotive vs Aerospace: Applications of 71932 ACD/P4AQBCA Bearing
In automotive systems, 71932 ACD/P4AQBCA Bearing supports high-performance transmissions, while in aerospace, it’s trusted for critical flight control mechanisms. Its matched arrangement of four bearings enhances stability in both sectors.

Perfect Fit for Automation: 71932 ACD/P4AQBCA Bearing
71932 ACD/P4AQBCA Bearing is ideal for robotic arms in automated production lines, thanks to its low friction and high-speed capability. The open seal design allows for easy lubrication, reducing downtime.

Q&A

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