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Super Precision Angular Contact Ball Bearings 71920 ACD/P4AQBTC

Super Precision Angular Contact Ball Bearings 71920 ACD/P4AQBTC

The 71920 ACD/P4AQBTC is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from high-quality chrome steel. It handles both radial and angular loads, with a dynamic radial load capacity of 33975 lbf and a static radial load of 56250 lbf.

Designed for high-speed applications, it can spin up to 15000 RPM while maintaining stability. The phenolic cage ensures smooth operation and durability, even under moderate preload conditions.

This bearing comes in a matched set of four, arranged for optimal performance in precision machinery. Its open design allows for easy lubrication and maintenance.

Ideal for use in machine tools or spindle applications where accuracy and speed are crucial. It operates efficiently in temperatures ranging from -30°C to 110°C.

Weighing 3.2kg, it’s a robust choice for demanding industrial environments. Compliant with precision class P4A standards, it’s interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 71920 ACD/P4AQBTC
  • 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 <>>> QBT
  • 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 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/P4AQBTC dimension drawing
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Features

Why Choose 71920 ACD/P4AQBTC Bearing for Precision Tasks?

71920 ACD/P4AQBTC Bearing features a 25° contact angle, optimised for high-precision angular contact applications.
Its chrome steel construction ensures durability and reliable performance under dynamic radial loads up to 33975 lbf.

The phenolic cage maintains ball alignment, reducing friction and enhancing smooth operation.
With a maximum speed of 15,000 rpm, it delivers both precision and efficiency.

71920 ACD/P4AQBTC Bearing operates effectively in temperatures ranging from -30°C to 110°C.
Its matched arrangement of four bearings ensures consistent performance in demanding setups.

The moderate preload (Class C) enhances stability, making it suitable for precision machinery.
Its open design allows for easy lubrication, ensuring long-term reliability.

Application

Industrial Uses of 71920 ACD/P4AQBTC Bearing
71920 ACD/P4AQBTC Bearing is commonly used in high-precision machine tools, where its moderate preload and angular contact design ensure accurate spindle rotation. The phenolic cage reduces friction, making it suitable for prolonged operation.

In automotive applications, 71920 ACD/P4AQBTC Bearing supports gearbox systems, handling both radial and axial loads efficiently. Its P4A tolerance class ensures consistent performance in demanding conditions.

For automation equipment, 71920 ACD/P4AQBTC Bearing’s matched arrangement of four bearings provides stability in robotic arms. The chrome steel construction offers durability in high-speed scenarios.

Medical imaging devices benefit from 71920 ACD/P4AQBTC Bearing’s precision, ensuring smooth operation in critical components. The open seal design allows for easy lubrication maintenance.

In aerospace systems, 71920 ACD/P4AQBTC Bearing’s ability to handle dynamic radial loads makes it a reliable choice for flight control mechanisms. The temperature range suits various operational environments.

Q&A

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