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Super Precision Angular Contact Ball Bearings 71808 ACD/P4DT

Super Precision Angular Contact Ball Bearings 71808 ACD/P4DT

The 71808 ACD/P4DT is a super precision angular contact ball bearing with a 40mm bore and 52mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 1667 lbf and spins smoothly at speeds up to 56,000 RPM.

Its 25° contact angle and matched pair design (DT arrangement) provide excellent stability for angular loads. The phenolic cage ensures quiet operation and long service life.

Preloaded for precision, this bearing is ideal for high-speed applications like machine tool spindles or robotics. It operates reliably in temperatures from -30°C to 110°C.

Weighing just 0.062kg, it’s lightweight yet robust. Compliant with P4 tolerance standards, it’s interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 71808 ACD/P4DT
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 40 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 52 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 14 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 3.175 mm
  • Ball Qty 29
  • Contact Angle 25°
  • Tolerance Class P4
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 2 bearings << DT
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 1667 lbf
  • Static Radial Load 2059 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 56000 rpm
  • Weight 0.062 kg
Super Precision Angular Contact Ball Bearings 71808 ACD/P4DT dimension drawing
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Features

Why Choose 71808 ACD/P4DT Bearing for Precision Tasks?

71808 ACD/P4DT Bearing features a 25° contact angle, ideal for handling combined radial and axial loads with high precision.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction for smoother operation.
With a dynamic radial load capacity of 1667 lbf, it performs reliably in demanding applications.
The P4 tolerance class guarantees exceptional accuracy, making it suitable for high-speed operations up to 56,000 rpm.

Application

Industrial Uses of 71808 ACD/P4DT Bearing
71808 ACD/P4DT Bearing is commonly used in high-speed machine tools, where its precision and angular contact design ensure accurate spindle rotation. The matched arrangement of two bearings enhances stability, making it suitable for demanding industrial environments.

In automotive applications, 71808 ACD/P4DT Bearing supports components like turbochargers and transmission systems, where its high-speed capability and load handling are essential. The phenolic cage material helps reduce friction, improving overall efficiency.

For robotics and automation, 71808 ACD/P4DT Bearing provides reliable performance in robotic arms and CNC machines. Its P4 tolerance class ensures minimal vibration, which is crucial for precision movements.

Where Is 71808 ACD/P4DT Bearing Used?
You’ll often find 71808 ACD/P4DT Bearing in medical imaging devices, where its smooth operation and high-speed performance are vital. The chrome steel construction ensures durability even in continuous use.

In consumer electronics, 71808 ACD/P4DT Bearing is used in high-performance fans and small motors. Its compact size and precision make it a reliable choice for devices requiring quiet and efficient operation.

Built for Heavy-Duty Use: 71808 ACD/P4DT Bearing
71808 ACD/P4DT Bearing excels in aerospace applications, such as aircraft control systems, where reliability under extreme conditions is critical. The open seal design allows for easy lubrication, extending service life.

For industrial pumps and compressors, 71808 ACD/P4DT Bearing handles both radial and axial loads with ease. Its high-speed rating ensures consistent performance in continuous operation scenarios.

Automotive vs Aerospace: Applications of 71808 ACD/P4DT Bearing
In automotive systems, 71808 ACD/P4DT Bearing is ideal for electric vehicle motors, offering high-speed and low-friction performance. The angular contact design efficiently manages combined loads.

In aerospace, 71808 ACD/P4DT Bearing is used in flight control mechanisms, where precision and reliability are non-negotiable. The matched bearing set provides the necessary stability for critical applications.

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