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Super Precision Angular Contact Ball Bearings 71808 ACD/P4DBC

Super Precision Angular Contact Ball Bearings 71808 ACD/P4DBC

The 71808 ACD/P4DBC is a super precision angular contact ball bearing with a 40mm bore and 52mm outer diameter, crafted from high-quality chrome steel. It features a 25° contact angle and comes in a matched pair for balanced performance.

Designed for moderate preload, it handles radial loads up to 1667 lbf and spins smoothly at speeds up to 43,000 RPM. The open design allows easy lubrication, while the phenolic cage ensures quiet operation.

Its tight tolerances (P4 class) make it ideal for high-precision applications like machine tool spindles or robotics. The bearing operates reliably in temperatures from -30°C to 110°C.

Weighing just 0.062kg, this lightweight yet sturdy bearing is interchangeable with SKF models, offering a practical replacement option. Perfect for setups requiring paired bearings for angular contact loads.

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Product Parameters

  • Part Number 71808 ACD/P4DBC
  • 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 <> DB
  • Number Of Bearings In Matched Set 2
  • 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 1667 lbf
  • Static Radial Load 2059 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 43000 rpm
  • Weight 0.062 kg
Super Precision Angular Contact Ball Bearings 71808 ACD/P4DBC dimension drawing
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Features

Engineered for Precision: 71808 ACD/P4DBC Bearing

71808 ACD/P4DBC Bearing features a 25° contact angle, optimised for high-precision angular contact applications.
Its chrome steel rings and balls ensure durability, while the phenolic cage enhances performance at high speeds.

With a dynamic radial load capacity of 1667 lbf, it handles demanding conditions reliably.
The P4 tolerance class guarantees exceptional accuracy, making it suitable for precision machinery.

Operating at up to 43,000 rpm, 71808 ACD/P4DBC Bearing balances speed and stability.
Its moderate preload (Class C) ensures smooth operation in matched bearing arrangements.

The open design allows for easy lubrication, extending service life.
71808 ACD/P4DBC Bearing performs consistently within a temperature range of -30°C to 110°C.

Application

How Does 71808 ACD/P4DBC Bearing Improve Performance?
In high-speed machine tools, 71808 ACD/P4DBC Bearing handles radial and axial loads with precision, thanks to its 25° contact angle and matched arrangement. The phenolic cage reduces friction, ensuring smooth operation even at 43,000 rpm.

Where Is 71808 ACD/P4DBC Bearing Used?
You’ll often find 71808 ACD/P4DBC Bearing in robotics, where its moderate preload and P4 tolerance class provide the accuracy needed for precise movements. The chrome steel construction also makes it durable for long-term use.

Built for Heavy-Duty Use: 71808 ACD/P4DBC Bearing
This bearing excels in industrial pumps, where its dynamic radial load capacity of 1667 lbf ensures reliability under constant stress. The open design allows for easy lubrication, extending its service life.

Automotive vs Aerospace: Applications of 71808 ACD/P4DBC Bearing
In automotive transmissions, 71808 ACD/P4DBC Bearing supports smooth gear shifts, while in aerospace, its temperature range (-30°C to 110°C) makes it suitable for varying flight conditions. The metric sizing ensures compatibility across industries.

Perfect Fit for Automation: 71808 ACD/P4DBC Bearing
For automated production lines, 71808 ACD/P4DBC Bearing offers the precision and speed needed for consistent performance. Its two-bearing matched set simplifies installation and maintenance in tight spaces.

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