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Super Precision Angular Contact Ball Bearings 71908 ACD/P4ADGA

Super Precision Angular Contact Ball Bearings 71908 ACD/P4ADGA

The 71908 ACD/P4ADGA is a super precision angular contact ball bearing, measuring 40mm by 62mm by 24mm, crafted from durable chrome steel. It features a 25° contact angle and comes in a universal matching set of two bearings.
This model handles radial loads up to 4275 lbf and spins smoothly at speeds up to 56,000 RPM, thanks to its phenolic cage and lubricated design. Its extra-light preload ensures minimal friction during operation.
The open seal allows for easy maintenance, while the P4A tolerance class guarantees high precision. It works well in temperatures from -30°C to 110°C, making it versatile for various conditions.
Ideal for applications requiring high-speed and precision, such as machine tool spindles or robotics. Weighing just 0.22kg, it’s lightweight yet robust for its size. The bearings can be arranged back-to-back, face-to-face, or tandem for flexible use.

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Product Parameters

  • Part Number 71908 ACD/P4ADGA
  • 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 Extra light / Class A
  • 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（$） 163.674
Super Precision Angular Contact Ball Bearings 71908 ACD/P4ADGA dimension drawing
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Features

Performance Features of 71908 ACD/P4ADGA Bearing

71908 ACD/P4ADGA Bearing is designed with a 25° contact angle, ideal for handling combined radial and axial loads.
Its chrome steel rings and balls provide durability, while the phenolic cage ensures smooth operation at high speeds.

With a dynamic radial load capacity of 4275 lbf, it performs reliably in demanding applications.
The extra light preload (Class A) enhances precision, making it suitable for high-speed tasks.

71908 ACD/P4ADGA Bearing operates efficiently 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 ensures easy lubrication, maintaining performance in varied conditions.
Its temperature range of -30°C to 110°C makes it adaptable to different working environments.

Application

Key Fields for 71908 ACD/P4ADGA Bearing
71908 ACD/P4ADGA Bearing is commonly used in high-speed machine tools, where its precision angular contact design ensures accurate spindle performance. The extra light preload helps minimise friction, making it ideal for applications demanding smooth rotation.

In robotics, 71908 ACD/P4ADGA Bearing supports articulated arms, providing stability during rapid movements. Its universal matching feature allows flexible arrangement, catering to various load directions.

For aerospace components, 71908 ACD/P4ADGA Bearing’s phenolic cage and chrome steel construction offer durability in demanding conditions. The P4A tolerance class ensures consistent performance in critical systems.

Automotive applications like electric vehicle motors benefit from 71908 ACD/P4ADGA Bearing’s high-speed capability. The 25° contact angle efficiently handles combined radial and axial loads.

In medical imaging devices, 71908 ACD/P4ADGA Bearing’s low vibration characteristics contribute to quieter operation. The lubricated design reduces maintenance needs in sensitive environments.

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