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Super Precision Angular Contact Ball Bearings 71908 ACD/P4ADGB

Super Precision Angular Contact Ball Bearings 71908 ACD/P4ADGB

The 71908 ACD/P4ADGB is a super precision angular contact ball bearing with a 40mm bore and 62mm outer diameter, crafted from high-quality chrome steel. It features a 25° contact angle and comes in a universal matching set of two bearings.

This bearing handles radial loads up to 4275 lbf and spins smoothly at speeds up to 56,000 RPM. Its phenolic cage ensures durability, while the open design allows for easy lubrication.

The universal matching design supports various arrangements like back-to-back, face-to-face, or tandem, offering flexibility for different applications. Ideal for high-precision machinery such as CNC spindles or medical equipment.

Weighing just 0.22kg, it’s lightweight yet robust, with a temperature range of -30°C to 110°C. Compliant with P4A tolerance class for exceptional accuracy.

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Product Parameters

  • Part Number 71908 ACD/P4ADGB
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 40 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 62 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 24 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 6.35 mm
  • Ball Qty 21
  • Contact Angle 25°
  • Tolerance Class P4A
  • 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 Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 4275 lbf
  • Static Radial Load 3600 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 56000 rpm
  • Weight 0.22 kg
  • Price（$） 133.38
Super Precision Angular Contact Ball Bearings 71908 ACD/P4ADGB dimension drawing
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Features

Performance Features of 71908 ACD/P4ADGB Bearing

71908 ACD/P4ADGB Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and noise.

With a dynamic radial load capacity of 4275 lbf, it handles demanding conditions reliably.
The P4A tolerance class guarantees high precision, making it suitable for critical tasks.

71908 ACD/P4ADGB Bearing operates smoothly at speeds up to 56,000 rpm.
Its universal matching design allows flexible arrangements like back-to-back or face-to-face configurations.

The open seal type facilitates easy lubrication, maintaining performance in temperatures from -30°C to 110°C.
This bearing’s lightweight phenolic cage also contributes to its efficiency and longevity.

Application

Common Applications of 71908 ACD/P4ADGB Bearing
71908 ACD/P4ADGB Bearing is widely used in high-precision machine tools, where its 25° contact angle ensures accurate radial and axial load handling. The universal matching design makes it versatile for various configurations, including back-to-back and face-to-face setups.

In automotive applications, 71908 ACD/P4ADGB Bearing supports high-speed components like turbochargers and gearboxes. Its phenolic cage and chrome steel construction provide durability and smooth operation under demanding conditions.

For robotics and automation, 71908 ACD/P4ADGB Bearing excels in robotic arms and CNC machinery, thanks to its P4A tolerance class. The light preload ensures minimal friction, enhancing precision in repetitive movements.

Medical imaging devices also benefit from 71908 ACD/P4ADGB Bearing’s reliability and low noise. Its open design allows for easy lubrication, maintaining performance in critical healthcare environments.

In aerospace systems, 71908 ACD/P4ADGB Bearing handles high-speed rotations with ease. The matched arrangement ensures consistent performance, even under extreme temperature variations.

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