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Super Precision Angular Contact Ball Bearings 71903 ACD/P4AQBCC

Super Precision Angular Contact Ball Bearings 71903 ACD/P4AQBCC

The 71903 ACD/P4AQBCC is a super precision angular contact ball bearing with a 17mm bore and 30mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 2385 lbf and spins smoothly at speeds up to 121,000 RPM.

With a 25° contact angle and moderate preload, it offers excellent stability for high-precision applications. The phenolic cage ensures quiet operation and long service life.

This bearing comes in a matched set of four, ideal for applications requiring tight tolerances like machine tool spindles. Its open design allows for easy lubrication and maintenance.

Operating in temperatures from -30°C to 110°C, it’s a reliable choice for demanding environments. Weighing just 0.068kg, it’s lightweight yet robust for its size.

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Product Parameters

  • Part Number 71903 ACD/P4AQBCC
  • 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 28 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 4 bearings <<>> QBC
  • Number Of Bearings In Matched Set 4
  • Universal Matching Bearing No
  • Preload Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 2385 lbf
  • Static Radial Load 1800 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 121000 rpm
  • Weight 0.068 kg
Super Precision Angular Contact Ball Bearings 71903 ACD/P4AQBCC dimension drawing
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Features

Performance Features of 71903 ACD/P4AQBCC Bearing

71903 ACD/P4AQBCC Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability and smooth operation under dynamic radial loads up to 2385 lbf.

The phenolic cage maintains ball alignment, reducing friction and enhancing performance at high speeds up to 121,000 rpm.
This bearing operates efficiently within a temperature range of -30°C to 110°C, suitable for various environments.

With a P4A tolerance class, 71903 ACD/P4AQBCC Bearing offers precision and reliability in demanding applications.
Its moderate preload (Class C) ensures consistent performance without excessive wear.

The matched arrangement of four bearings provides balanced load handling, ideal for complex mechanical systems.
Its open design allows for easy lubrication, maintaining optimal performance over time.

Application

Ideal for Precision: 71903 ACD/P4AQBCC Bearing
71903 ACD/P4AQBCC Bearing is commonly used in high-precision machine tools, where its moderate preload ensures stability during operations. The angular contact design helps manage both radial and axial loads efficiently.

In robotics, 71903 ACD/P4AQBCC Bearing supports smooth movement in articulated arms, thanks to its phenolic cage reducing friction. Its high-speed capability makes it suitable for automated production lines.

For medical imaging devices, 71903 ACD/P4AQBCC Bearing’s chrome steel construction ensures durability and consistent performance. The P4A tolerance class guarantees the precision needed for sensitive equipment.

Automotive applications like electric power steering benefit from 71903 ACD/P4AQBCC Bearing’s ability to handle angular loads. The matched arrangement of four bearings enhances overall system reliability.

Q&A

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