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Super Precision Angular Contact Ball Bearings 71920 ACD/P4AQBCB

Super Precision Angular Contact Ball Bearings 71920 ACD/P4AQBCB

The 71920 ACD/P4AQBCB is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 33975 lbf and operates smoothly at speeds up to 15000 RPM.

Its 25° contact angle and matched set of four bearings provide excellent stability for angular loads. The phenolic cage ensures quiet operation and durability under high-speed conditions.

This bearing is ideal for precision applications like machine tool spindles or high-performance motors. Its open design allows for easy lubrication, enhancing its lifespan.

Weighing 3.2kg, it’s robust yet manageable for its size. Compliant with P4A tolerance standards, it offers reliable performance in temperatures from -30°C to 110°C.

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Product Parameters

  • Part Number 71920 ACD/P4AQBCB
  • 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 Light / Class B
  • 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/P4AQBCB dimension drawing
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Features

Why Choose 71920 ACD/P4AQBCB Bearing for Precision Tasks?

71920 ACD/P4AQBCB Bearing features a 25° contact angle, ideal for handling combined radial and axial loads with precision.
Its chrome steel rings and balls ensure durability and smooth operation under high-speed conditions.

With a dynamic radial load capacity of 33,975 lbf, it excels in demanding applications.
The phenolic cage maintains ball alignment, reducing friction and extending service life.

71920 ACD/P4AQBCB Bearing operates efficiently at speeds up to 15,000 rpm.
Its P4A tolerance class guarantees high accuracy, making it suitable for precision machinery.

The matched arrangement of four bearings ensures consistent performance.
Light preload class B enhances stability, reducing vibration during operation.

71920 ACD/P4AQBCB Bearing works reliably in temperatures from -30°C to 110°C.
Its open design allows for easy lubrication, maintaining optimal performance over time.

Application

Key Fields for 71920 ACD/P4AQBCB Bearing
71920 ACD/P4AQBCB Bearing is widely 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 operations.

In aerospace applications, 71920 ACD/P4AQBCB Bearing supports critical components like turbine shafts, thanks to its light preload and high-speed capability. The phenolic cage reduces friction, enhancing performance in extreme conditions.

For automation systems, 71920 ACD/P4AQBCB Bearing is ideal for robotic arms, offering reliable angular load handling. Its P4A tolerance class guarantees precision in repetitive tasks.

Medical imaging devices benefit from 71920 ACD/P4AQBCB Bearing’s smooth operation and low noise. The chrome steel construction ensures long-term durability in sterile environments.

Q&A

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