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Super Precision Angular Contact Ball Bearings 71904 ACD/P4ADGC

Super Precision Angular Contact Ball Bearings 71904 ACD/P4ADGC

The 71904 ACD/P4ADGC is a super precision angular contact ball bearing with a 20mm bore and 37mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 2106 lbf and spins smoothly at speeds up to 100,500 RPM.

Its 25° contact angle and phenolic cage ensure stable performance under moderate preload. The open design allows easy lubrication, making maintenance straightforward.

This bearing is part of a matched set, suitable for universal mounting in back-to-back, face-to-face, or tandem arrangements. Ideal for high-speed applications like machine tool spindles or precision instruments.

Weighing just 0.07kg, it’s lightweight yet robust, operating efficiently in temperatures from -30°C to 110°C. Compliant with P4A tolerance class for exceptional accuracy.

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Product Parameters

  • Part Number 71904 ACD/P4ADGC
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 20 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 37 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 18 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 4.762 mm
  • Ball Qty 15
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Universal matching
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 2106 lbf
  • Static Radial Load 1372 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 100500 rpm
  • Weight 0.07 kg
Super Precision Angular Contact Ball Bearings 71904 ACD/P4ADGC dimension drawing
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Features

Performance Features of 71904 ACD/P4ADGC Bearing

71904 ACD/P4ADGC Bearing is crafted with chrome steel rings and balls, ensuring durability and precision in angular contact applications.
Its 25° contact angle and universal matching design allow for versatile mounting options, including back-to-back and face-to-face arrangements.

The phenolic cage maintains ball alignment, reducing friction and enhancing performance at high speeds.
With a maximum speed of 100,500 rpm, it excels in demanding, high-speed environments.

71904 ACD/P4ADGC Bearing’s moderate preload (Class C) ensures smooth operation and extended service life.
Its dynamic radial load capacity of 2106 lbf makes it suitable for heavy-duty applications.

The open seal type allows for easy lubrication, maintaining optimal performance.
Operating within a temperature range of -30°C to 110°C, it adapts to various environmental conditions.

Precision-engineered to P4A tolerance class, 71904 ACD/P4ADGC Bearing delivers reliable accuracy.
Its lightweight design (0.07 kg) ensures easy handling without compromising strength.

Application

Key Fields for 71904 ACD/P4ADGC Bearing
71904 ACD/P4ADGC Bearing is commonly used in high-speed machine tools, where its precision and moderate preload ensure smooth operation. The 25° contact angle makes it suitable for handling combined radial and axial loads efficiently.

In robotics, 71904 ACD/P4ADGC Bearing supports articulated arms, providing stability during repetitive movements. Its universal matching feature allows flexible arrangement in tight spaces.

For aerospace applications, 71904 ACD/P4ADGC Bearing’s phenolic cage and chrome steel construction offer reliability in extreme conditions. The P4A tolerance class ensures consistent performance in critical systems.

Where Is 71904 ACD/P4ADGC Bearing Used?
You’ll find 71904 ACD/P4ADGC Bearing in 3D printers, where its high-speed capability and precision are essential for accurate layering. The open design allows for easy lubrication maintenance.

In medical imaging devices, 71904 ACD/P4ADGC Bearing’s low vibration and noise levels contribute to clearer scans. Its temperature range suits both sterile and high-use environments.

Built for Heavy-Duty Use: 71904 ACD/P4ADGC Bearing
71904 ACD/P4ADGC Bearing handles demanding loads in industrial pumps, thanks to its dynamic radial load capacity. The matched set option simplifies installation in complex machinery.

Automotive vs Aerospace: Applications of 71904 ACD/P4ADGC Bearing
In automotive transmissions, 71904 ACD/P4ADGC Bearing ensures smooth gear shifts with its angular contact design. For aerospace, its lightweight construction and high-speed tolerance are ideal for flight control systems.

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