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Super Precision Angular Contact Ball Bearings 71934 ACD/P4AQBCB

Super Precision Angular Contact Ball Bearings 71934 ACD/P4AQBCB

The 71934 ACD/P4AQBCB is a super precision angular contact ball bearing with a 170mm bore and 230mm outer diameter, crafted from high-quality chrome steel. It features a 25° contact angle and comes in a matched set of four bearings for balanced performance.

Designed for angular contact loads, it handles dynamic radial loads up to 73125 lbf and static radial loads up to 144000 lbf. With a maximum speed of 16250 RPM, it operates smoothly in temperatures from -30°C to 110°C.

Its open design and phenolic cage ensure durability and easy maintenance. The light preload (Class B) enhances precision, making it ideal for high-speed applications like machine tool spindles or precision instruments.

Weighing 11.4kg, this bearing is robust yet precise, meeting P4A tolerance standards for exceptional accuracy. It’s interchangeable with SKF bearings, offering a reliable replacement option.

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Product Parameters

  • Part Number 71934 ACD/P4AQBCB
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 170 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 230 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 112 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 19.05 mm
  • Ball Qty 29
  • 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 Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 73125 lbf
  • Static Radial Load 144000 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16250 rpm
  • Weight 11.4 kg
  • Price（$） 3131.217
Super Precision Angular Contact Ball Bearings 71934 ACD/P4AQBCB dimension drawing
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Features

Performance Features of 71934 ACD/P4AQBCB Bearing

71934 ACD/P4AQBCB Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.

The chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and noise.

With a dynamic radial load capacity of 73125 lbf, it handles demanding conditions efficiently.

Its matched arrangement of four bearings provides stability and precision in high-speed operations.

Application

Industrial Uses of 71934 ACD/P4AQBCB Bearing
71934 ACD/P4AQBCB 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 continuous operation in demanding environments.

In automotive applications, 71934 ACD/P4AQBCB Bearing supports high-speed components like turbochargers and transmission systems. Its light preload and P4A tolerance class provide the stability needed for smooth performance.

For robotics, 71934 ACD/P4AQBCB Bearing offers reliable motion control in articulated arms and automated assembly lines. The matched arrangement of four bearings enhances load distribution, extending service life.

Medical imaging devices benefit from 71934 ACD/P4AQBCB Bearing’s precision and low vibration. The chrome steel construction ensures durability in sensitive equipment like MRI scanners and X-ray machines.

In aerospace, 71934 ACD/P4AQBCB Bearing is trusted for flight control systems and landing gear mechanisms. Its high dynamic radial load capacity makes it a dependable choice for critical aviation components.

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