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Super Precision Angular Contact Ball Bearings 71903 ACD/P4ADBA

Super Precision Angular Contact Ball Bearings 71903 ACD/P4ADBA

The 71903 ACD/P4ADBA is a super precision angular contact ball bearing with a compact 17mm bore and 30mm outer diameter, crafted from high-quality chrome steel. It features a 25° contact angle and comes in a matched set of two bearings for balanced performance.

This bearing handles radial loads up to 1462 lbf and can reach speeds of 103,000 RPM, making it suitable for high-speed applications. Its phenolic cage ensures smooth operation and durability under demanding conditions.

The open design allows for easy lubrication, while the extra-light preload (Class A) ensures minimal friction. It operates efficiently in temperatures ranging from -30°C to 110°C.

Ideal for precision machinery like spindles or CNC equipment, this bearing is interchangeable with SKF models. Weighing just 0.034kg, it’s lightweight yet robust for its size.

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Product Parameters

  • Part Number 71903 ACD/P4ADBA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 17 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 30 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 14 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 3.969 mm
  • Ball Qty 14
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 2 bearings <> DB
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 1462 lbf
  • Static Radial Load 900 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 103000 rpm
  • Weight 0.034 kg
Super Precision Angular Contact Ball Bearings 71903 ACD/P4ADBA dimension drawing
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Features

Performance Features of 71903 ACD/P4ADBA Bearing

71903 ACD/P4ADBA Bearing is designed with a 25° contact angle, ideal for handling combined radial and axial loads.
Its matched arrangement of two bearings ensures stability and precision in high-speed applications.

The chrome steel rings and balls provide durability, while the phenolic cage reduces friction and wear.
With a maximum speed of 103,000 rpm, it delivers reliable performance in demanding conditions.

71903 ACD/P4ADBA Bearing’s extra light preload enhances smooth operation and reduces vibration.
Its P4A tolerance class guarantees high precision, making it suitable for critical applications.

Application

Key Fields for 71903 ACD/P4ADBA Bearing
71903 ACD/P4ADBA Bearing is commonly used in high-speed machine spindles, where its precision angular contact design ensures smooth rotation. The phenolic cage reduces friction, making it ideal for applications requiring minimal vibration.

In robotics, 71903 ACD/P4ADBA Bearing supports articulated arms, providing stability during precise movements. Its extra-light preload helps maintain accuracy in repetitive tasks.

For dental drills and other medical tools, 71903 ACD/P4ADBA Bearing’s chrome steel construction offers durability. The P4A tolerance class ensures consistent performance in critical healthcare environments.

Automotive applications like electric power steering systems benefit from 71903 ACD/P4ADBA Bearing’s high-speed capability. The matched arrangement simplifies installation in compact spaces.

In 3D printers, 71903 ACD/P4ADBA Bearing’s low friction enhances print quality. The open design allows for easy lubrication, extending service life in continuous operation.

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