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Super Precision Angular Contact Ball Bearings 71901 ACE/P4ADBB

Super Precision Angular Contact Ball Bearings 71901 ACE/P4ADBB

The 71901 ACE/P4ADBB is a super precision angular contact ball bearing, measuring 12mm by 24mm by 12mm. Made from chrome steel, it features a 25° contact angle and comes in a matched pair for balanced performance.

It handles radial loads up to 747 lbf and spins smoothly at speeds up to 140,000 RPM. The phenolic cage ensures quiet operation, while the open design allows for easy lubrication.

With a light preload and P4A tolerance class, it offers high accuracy for demanding applications. Ideal for precision machinery like spindles or small motors where smooth rotation is key.

Weighing just 0.02kg, this bearing is lightweight yet durable. It works in temperatures from -30°C to 110°C and is interchangeable with SKF models for easy replacement.

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Product Parameters

  • Part Number 71901 ACE/P4ADBB
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 12 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 24 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 12 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 3.175 mm
  • Ball Qty 12
  • 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 Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 747 lbf
  • Static Radial Load 382 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 140000 rpm
  • Weight 0.02 kg
Super Precision Angular Contact Ball Bearings 71901 ACE/P4ADBB dimension drawing
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Features

Performance Features of 71901 ACE/P4ADBB Bearing

71901 ACE/P4ADBB Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls enhance durability, while the phenolic cage ensures smooth operation at high speeds.

With a dynamic radial load capacity of 747 lbf, it handles demanding conditions reliably.
The matched arrangement of two bearings provides stability, making it suitable for precision tasks.

71901 ACE/P4ADBB Bearing operates efficiently at speeds up to 140,000 rpm.
Its open design and lubrication ensure minimal friction, extending service life.

The P4A tolerance class guarantees high precision, ideal for critical applications.
Light preload (Class B) further enhances performance, reducing vibration and noise.

Application

Common Applications of 71901 ACE/P4ADBB Bearing
71901 ACE/P4ADBB Bearing is widely used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The light preload and P4A tolerance class make it suitable for applications demanding minimal vibration.

In robotics, 71901 ACE/P4ADBB Bearing supports articulated arms, providing smooth movement and long service life. The matched arrangement of two bearings enhances stability in dynamic operations.

For dental drills and other medical devices, 71901 ACE/P4ADBB Bearing offers reliable performance due to its chrome steel construction. The phenolic cage reduces friction, ensuring quiet operation in sensitive environments.

Automotive applications like electric power steering benefit from 71901 ACE/P4ADBB Bearing’s high-speed capability. Its metric dimensions and compatibility with SKF models make it a versatile choice for various vehicle systems.

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