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Super Precision Angular Contact Ball Bearings 71920 ACD/P4AQBCD

Super Precision Angular Contact Ball Bearings 71920 ACD/P4AQBCD

The 71920 ACD/P4AQBCD is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from durable chrome steel. It handles heavy radial loads up to 33975 lbf and spins smoothly at speeds up to 15000 RPM.

Its 25° contact angle and matched set of four bearings provide excellent stability under angular loads. The phenolic cage ensures quiet operation and long service life.

Designed for heavy preload applications, this bearing suits high-precision machinery like spindles or CNC equipment. It operates reliably in temperatures from -30°C to 110°C.

Weighing 3.2kg, it’s robust yet precision-engineered for demanding environments. Compliant with P4A tolerance standards for exceptional accuracy.

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Product Parameters

  • Part Number 71920 ACD/P4AQBCD
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 100 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 140 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 80 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 12.7 mm
  • Ball Qty 26
  • 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 Heavy / Class D
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 33975 lbf
  • Static Radial Load 56250 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 15000 rpm
  • Weight 3.2 kg
Super Precision Angular Contact Ball Bearings 71920 ACD/P4AQBCD dimension drawing
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Features

Why Choose 71920 ACD/P4AQBCD Bearing for Precision Tasks?

71920 ACD/P4AQBCD Bearing features a 25° contact angle, ideal for handling combined radial and axial loads with high precision.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and noise.

With a dynamic radial load capacity of 33,975 lbf, it performs reliably in demanding applications.
The P4A tolerance class guarantees exceptional accuracy, making it suitable for high-precision machinery.

Designed for heavy preload, 71920 ACD/P4AQBCD Bearing maintains stability even at high speeds up to 15,000 rpm.
Its matched arrangement of four bearings ensures consistent performance in complex setups.

Application

How Does 71920 ACD/P4AQBCD Bearing Improve Performance?
71920 ACD/P4AQBCD Bearing excels in high-speed machine tools, where its 25° contact angle ensures precise spindle rotation. The phenolic cage reduces friction, making it ideal for continuous operation.

In robotics, 71920 ACD/P4AQBCD Bearing supports articulated arms, providing stability under heavy preload conditions. Its matched set of four bearings enhances alignment accuracy for repetitive tasks.

For aerospace applications, 71920 ACD/P4AQBCD Bearing handles radial and axial loads in avionics systems. The P4A tolerance class guarantees consistent performance in critical flight components.

Medical imaging devices benefit from 71920 ACD/P4AQBCD Bearing’s low vibration and smooth motion. The chrome steel construction ensures longevity in sterile environments.

Automotive testing equipment relies on 71920 ACD/P4AQBCD Bearing for its high dynamic load capacity. Its lubricated design maintains performance even under prolonged use.

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