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Super Precision Angular Contact Ball Bearings 71815 ACD/P4DFA

Super Precision Angular Contact Ball Bearings 71815 ACD/P4DFA

The 71815 ACD/P4DFA is a super precision angular contact ball bearing with a 75mm bore and 95mm outer diameter, crafted from durable chrome steel. Its 25° contact angle and matched DF arrangement provide stable performance under angular loads.

This bearing handles radial loads up to 4860 lbf and spins smoothly at speeds up to 28,000 RPM. The phenolic cage ensures quiet operation, while the open design allows easy lubrication.

With a tight P4 tolerance class, it offers high accuracy for demanding applications. The extra-light preload (Class A) reduces friction, making it energy-efficient.

Ideal for precision machinery like spindles or CNC tools, it operates in temperatures from -30°C to 110°C. Weighing 0.28kg, it’s a reliable choice for paired bearing setups.

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Product Parameters

  • Part Number 71815 ACD/P4DFA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 75 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 95 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 20 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 5.556 mm
  • Ball Qty 33
  • Contact Angle 25°
  • Tolerance Class P4
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 2 bearings >< DF
  • 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 4860 lbf
  • Static Radial Load 7200 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 28000 rpm
  • Weight 0.28 kg
Super Precision Angular Contact Ball Bearings 71815 ACD/P4DFA dimension drawing
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Features

Performance Features of 71815 ACD/P4DFA Bearing

71815 ACD/P4DFA Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.

The chrome steel rings and balls enhance durability, supporting dynamic radial loads up to 4860 lbf.

With a phenolic cage, it ensures smooth operation at high speeds, reaching up to 28,000 rpm.

Its precision P4 tolerance class guarantees consistent performance in demanding conditions.

Application

Key Fields for 71815 ACD/P4DFA Bearing
71815 ACD/P4DFA Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The matched arrangement of two bearings provides extra stability for demanding operations.

In robotics, 71815 ACD/P4DFA Bearing supports articulated arms, offering smooth movement thanks to its phenolic cage and chrome steel construction. Its extra light preload makes it ideal for applications requiring minimal friction.

For aerospace components, 71815 ACD/P4DFA Bearing handles both radial and axial loads efficiently, making it suitable for gearbox systems. The P4 tolerance class ensures consistent performance even at high speeds.

Where Is 71815 ACD/P4DFA Bearing Used?
You’ll often find 71815 ACD/P4DFA Bearing in medical imaging devices, where its precision and reliability are crucial for clear diagnostics. The open seal design allows for easy lubrication maintenance.

In industrial automation, this bearing is a go-to for linear actuators and CNC machinery. Its 25° contact angle provides excellent load distribution, reducing wear over time.

Built for Heavy-Duty Use: 71815 ACD/P4DFA Bearing
71815 ACD/P4DFA Bearing excels in electric motors, particularly those used in hybrid vehicles, due to its high-speed capability and durability. The lubricated design ensures long service life even under continuous use.

For packaging machinery, this bearing’s phenolic cage reduces noise and vibration, improving overall efficiency. Its metric sizing makes it easy to integrate into various European and Asian equipment designs.

Automotive vs Aerospace: Applications of 71815 ACD/P4DFA Bearing
In automotive transmissions, 71815 ACD/P4DFA Bearing handles high thrust loads while maintaining smooth operation. Its chrome steel rings and balls provide the necessary strength for these demanding conditions.

For aerospace applications, this bearing’s P4 tolerance and extra light preload ensure precision in flight control systems. The matched set arrangement further enhances performance in critical environments.

Q&A

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