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Super Precision Angular Contact Ball Bearings 71904 ACD/P4ADGB

Super Precision Angular Contact Ball Bearings 71904 ACD/P4ADGB

The 71904 ACD/P4ADGB 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 comes pre-lubricated for smooth operation.

This bearing handles radial loads up to 2106 lbf and can reach speeds of 100,500 RPM, making it suitable for high-performance applications. Its phenolic cage ensures durability while keeping weight low at just 0.07kg.

The universal matching design allows for flexible arrangements like back-to-back or face-to-face mounting. Ideal for precision machinery, spindles, or tooling systems where accuracy and speed are crucial.

Operating in temperatures from -30°C to 110°C, this P4A-class bearing meets strict tolerance standards. Its open design facilitates easy maintenance and relubrication when needed.

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Product Parameters

  • Part Number 71904 ACD/P4ADGB
  • 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 Light / Class B
  • 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/P4ADGB dimension drawing
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Features

Performance Features of 71904 ACD/P4ADGB Bearing

71904 ACD/P4ADGB Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.

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

With a dynamic radial load capacity of 2106 lbf, it handles demanding conditions reliably.

The bearing’s P4A tolerance class guarantees precision, making it suitable for high-speed applications up to 100,500 rpm.

Application

Key Fields for 71904 ACD/P4ADGB Bearing
71904 ACD/P4ADGB Bearing is commonly used in high-speed machine tools, where its precision and light preload ensure smooth operation. The universal matching feature makes it versatile for various mounting configurations.

In automotive applications, 71904 ACD/P4ADGB Bearing supports components like electric motors and gearboxes, thanks to its angular contact design. The phenolic cage reduces friction, enhancing performance in demanding conditions.

For robotics, 71904 ACD/P4ADGB Bearing excels in articulated arms and automated systems, where its high-speed capability is crucial. The P4A tolerance class guarantees consistent accuracy in repetitive tasks.

Medical imaging devices benefit from 71904 ACD/P4ADGB Bearing’s reliability and low noise levels. The chrome steel construction ensures durability in sensitive environments.

In consumer electronics, 71904 ACD/P4ADGB Bearing is found in precision devices like 3D printers. Its compact size and high-speed performance make it a practical choice for small-scale applications.

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