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Super Precision Angular Contact Ball Bearings 71904 ACDGD/P4A

Super Precision Angular Contact Ball Bearings 71904 ACDGD/P4A

The 71904 ACDGD/P4A is a super precision angular contact ball bearing with a 20mm bore and 37mm outer diameter, crafted from high-quality chrome steel. It features a 25° contact angle and is designed for heavy preload applications, offering smooth operation at speeds up to 75,000 RPM.

With a dynamic radial load capacity of 1287 lbf, this bearing is built to handle demanding conditions. Its phenolic cage ensures durability and reduces friction, making it ideal for high-speed machinery.

The open design allows for easy lubrication, while the P4A tolerance class guarantees exceptional precision. It can be used in matched sets for back-to-back, face-to-face, or tandem arrangements, providing flexibility in various setups.

Weighing just 0.035kg, this bearing is lightweight yet robust. Suitable for applications like machine tools or precision instruments where accuracy and speed are crucial. Operating temperature ranges from -30°C to 110°C.

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Product Parameters

  • Part Number 71904 ACDGD/P4A
  • 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 9 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 No
  • Number Of Bearings In Matched Set 3
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Heavy / Class D
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 1287 lbf
  • Static Radial Load 686 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 75000 rpm
  • Weight 0.035 kg
Super Precision Angular Contact Ball Bearings 71904 ACDGD/P4A dimension drawing
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Features

Performance Features of 71904 ACDGD/P4A Bearing

71904 ACDGD/P4A Bearing is crafted for high-speed applications, with a maximum speed of 75,000 rpm.

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

The bearing handles dynamic radial loads up to 1287 lbf, making it suitable for precision tasks.

With a 25° contact angle, it efficiently manages angular contact loads in various configurations.

Application

Key Fields for 71904 ACDGD/P4A Bearing
71904 ACDGD/P4A Bearing is commonly used in high-speed machine tools, where its precision angular contact design ensures accurate spindle rotation. The heavy preload and P4A tolerance class make it suitable for demanding industrial applications.

In automotive systems, 71904 ACDGD/P4A Bearing supports components like electric power steering units, offering reliable performance under angular loads. Its phenolic cage provides stability and reduces friction during operation.

For robotics, 71904 ACDGD/P4A Bearing is ideal for articulated arms, thanks to its high-speed capability and consistent load handling. The open design allows for easy lubrication, extending service life in continuous-use scenarios.

In medical imaging devices, 71904 ACDGD/P4A Bearing’s chrome steel construction ensures smooth, quiet operation. Its tight tolerances and universal matching options make it adaptable to various configurations.

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