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Super Precision Angular Contact Ball Bearings 71908 ACD/P4ADGC

Super Precision Angular Contact Ball Bearings 71908 ACD/P4ADGC

The 71908 ACD/P4ADGC is a super precision angular contact ball bearing measuring 40mm by 62mm by 24mm, crafted from high-quality chrome steel. It features a 25° contact angle and is lubricated for smooth operation.

With a dynamic radial load capacity of 4275 lbf, it can handle high speeds up to 41,000 RPM. Its phenolic cage ensures durability and reduces friction during use.

This bearing comes in a matched set of two, allowing for universal matching in back-to-back, face-to-face, or tandem arrangements. Ideal for precision applications like machine tools or high-speed spindles.

Weighing just 0.22kg, it operates efficiently in temperatures from -30°C to 110°C. Compliant with P4A tolerance class for exceptional accuracy.

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Product Parameters

  • Part Number 71908 ACD/P4ADGC
  • 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 Moderate / Class C
  • 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 41000 rpm
  • Weight 0.22 kg
  • Price（$） 163.674
Super Precision Angular Contact Ball Bearings 71908 ACD/P4ADGC dimension drawing
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Features

How Is 71908 ACD/P4ADGC Bearing Engineered for Reliability?

71908 ACD/P4ADGC Bearing features a 25° contact angle, optimised for handling combined radial and axial loads.
The chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and wear.

With a dynamic radial load capacity of 4275 lbf, it performs reliably in high-stress applications.
Its universal matching design allows flexible arrangements like back-to-back or face-to-face mounting.

The P4A tolerance class ensures precision, making it suitable for high-speed operations up to 41,000 rpm.
Moderate preload (Class C) enhances stability without compromising smooth rotation.

Application

Common Applications of 71908 ACD/P4ADGC Bearing
71908 ACD/P4ADGC Bearing is widely used in high-speed machine tools, where its precision and moderate preload ensure smooth operation. The angular contact design handles both radial and axial loads efficiently.

In automotive applications, 71908 ACD/P4ADGC Bearing supports gearbox systems, offering reliable performance under demanding conditions. Its universal matching feature allows flexible installation in various configurations.

For robotics, 71908 ACD/P4ADGC Bearing provides the accuracy needed for precise movements in robotic arms. The phenolic cage reduces friction, enhancing longevity in continuous operation.

How Does 71908 ACD/P4ADGC Bearing Improve Performance?
71908 ACD/P4ADGC Bearing enhances performance in spindle applications by reducing vibration and heat generation. Its P4A tolerance class ensures consistent accuracy even at high speeds.

The bearing’s chrome steel construction makes it suitable for harsh industrial environments. Its open design allows for easy lubrication, maintaining optimal performance over time.

In medical imaging devices, 71908 ACD/P4ADGC Bearing delivers quiet and reliable operation. The 25° contact angle balances load distribution for smoother rotation.

Built for Heavy-Duty Use: 71908 ACD/P4ADGC Bearing
71908 ACD/P4ADGC Bearing excels in heavy-duty applications like industrial pumps, where its dynamic radial load capacity is crucial. The phenolic cage resists wear in high-speed conditions.

For aerospace components, 71908 ACD/P4ADGC Bearing offers the precision needed for critical systems. Its temperature range ensures stability in varying operational conditions.

In automation equipment, this bearing supports high-speed linear actuators with minimal maintenance. The universal matching feature simplifies installation and alignment.

Automotive vs Aerospace: Applications of 71908 ACD/P4ADGC Bearing
In automotive gearboxes, 71908 ACD/P4ADGC Bearing handles high thrust loads with ease. Its moderate preload ensures smooth shifting and reduced wear.

For aerospace systems, the bearing’s precision and speed capabilities make it ideal for turbine applications. The P4A tolerance class meets stringent industry standards.

Both sectors benefit from the bearing’s durable chrome steel construction. Its versatility makes it a reliable choice across demanding environments.

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