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Super Precision Angular Contact Ball Bearings 71808 ACD/P4DGC

Super Precision Angular Contact Ball Bearings 71808 ACD/P4DGC

The 71808 ACD/P4DGC is a super precision angular contact ball bearing with a 40mm bore and 52mm outer diameter, crafted from durable chrome steel. Its compact 14mm width makes it suitable for tight spaces while maintaining high performance.

With a 25° contact angle, it handles both radial and axial loads efficiently, supporting up to 1667 lbf dynamically. It spins smoothly at speeds up to 56,000 RPM, ideal for high-speed applications.

The phenolic cage reduces friction and wear, while the open design allows easy lubrication. Its universal matching feature enables flexible arrangements like back-to-back or face-to-face setups.

Perfect for precision machinery like spindles or CNC tools, this bearing operates reliably between -30°C and 110°C. Weighing just 0.062kg, it’s lightweight yet robust for its size. Compliant with P4 tolerance class for exceptional accuracy.

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Product Parameters

  • Part Number 71808 ACD/P4DGC
  • 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 Universal matching
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • 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 56000 rpm
  • Weight 0.062 kg
Super Precision Angular Contact Ball Bearings 71808 ACD/P4DGC dimension drawing
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Features

Performance Features of 71808 ACD/P4DGC Bearing

71808 ACD/P4DGC Bearing is crafted with chrome steel rings and balls, offering high precision for angular contact applications.
Its 25° contact angle ensures optimal load distribution, enhancing performance in demanding setups.

The phenolic cage maintains ball alignment, reducing friction and extending operational life.
With a dynamic radial load capacity of 1667 lbf, it handles rigorous conditions reliably.

Designed for universal matching, 71808 ACD/P4DGC Bearing supports versatile arrangements like back-to-back or tandem.
Its P4 tolerance class guarantees exceptional accuracy for precision tasks.

Operating at speeds up to 56,000 rpm, this bearing balances speed and durability effortlessly.
The moderate preload (Class C) ensures smooth performance without excessive wear.

Application

Common Applications of 71808 ACD/P4DGC Bearing
71808 ACD/P4DGC Bearing is widely used in high-precision machine tools, where its 25° contact angle ensures accurate spindle rotation. The open design and moderate preload make it suitable for applications requiring both speed and stability.

In robotics, 71808 ACD/P4DGC Bearing supports articulated arms, providing smooth movement and long service life. Its phenolic cage reduces friction, which is essential for repetitive tasks in automated systems.

For medical imaging devices, 71808 ACD/P4DGC Bearing’s chrome steel construction offers reliability under continuous operation. The P4 tolerance class ensures minimal vibration, crucial for maintaining image clarity in diagnostic equipment.

Where Is 71808 ACD/P4DGC Bearing Used?
You’ll often find 71808 ACD/P4DGC Bearing in CNC machining centres, where its universal matching feature simplifies installation. The high-speed capability (up to 56,000 rpm) makes it ideal for precision cutting operations.

In electric vehicle motors, 71808 ACD/P4DGC Bearing handles angular loads efficiently, contributing to quieter and more efficient performance. The lubricated design also extends maintenance intervals, reducing downtime.

Built for Heavy-Duty Use: 71808 ACD/P4DGC Bearing
71808 ACD/P4DGC Bearing excels in industrial pumps, where its dynamic radial load capacity (1667 lbf) ensures reliable operation under pressure. The chrome steel balls and rings provide excellent wear resistance.

For aerospace applications, 71808 ACD/P4DGC Bearing’s temperature range (-30°C to 110°C) makes it adaptable to various environmental conditions. Its lightweight design (0.062 kg) is an added advantage for fuel efficiency.

Automotive vs Aerospace: Applications of 71808 ACD/P4DGC Bearing
In automotive transmissions, 71808 ACD/P4DGC Bearing supports high-speed shafts, thanks to its balanced load distribution. The metric sizing ensures compatibility with global vehicle designs.

For aerospace actuators, 71808 ACD/P4DGC Bearing’s precision and reliability are critical for safety. The tandem arrangement option allows for custom configurations to meet specific load requirements.

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