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Super Precision Angular Contact Ball Bearings 71948 ACD/P4A

Super Precision Angular Contact Ball Bearings 71948 ACD/P4A

The 71948 ACD/P4A is a super precision angular contact ball bearing with a 240mm bore and 320mm outer diameter, crafted from high-quality chrome steel. Its 25° contact angle efficiently manages both radial and thrust loads, making it versatile for demanding applications.

This bearing can handle dynamic radial loads up to 48600 lbf and operates smoothly at speeds up to 5300 RPM. The phenolic cage ensures durability and reduces friction, while the open design allows for easy lubrication.

With a P4 tolerance class, it offers exceptional accuracy for precision machinery. The bearing performs reliably in temperatures ranging from -30°C to 110°C, suitable for various industrial environments.

Weighing 8.5kg, it’s robust yet manageable for its size. Ideal for high-precision applications like machine tool spindles or aerospace components, where reliability and performance are critical.

Compatible with SKF bearings, it’s a practical choice for replacements or upgrades. The preload option enhances stability in high-speed operations.

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Product Parameters

  • Part Number 71948 ACD/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 240 mm
  • Bore Dia Tolerance -0.012mm to 0
  • Outer Dia 320 mm
  • Outer Dia Tolerance -0.015mm to 0
  • Width 38 mm
  • Width Tolerance -0.24mm to 0
  • Ball Dia 25.4 mm
  • Ball Qty 31
  • Contact Angle 25°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 48600 lbf
  • Static Radial Load 68625 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 5300 rpm
  • Weight 8.5 kg
  • Price（$） 566.829
Super Precision Angular Contact Ball Bearings 71948 ACD/P4A dimension drawing
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Features

Why Choose 71948 ACD/P4A Bearing for Precision Tasks?

71948 ACD/P4A Bearing features a 25° contact angle, ideal for handling combined radial and axial loads with precision.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and noise.
With a dynamic radial load capacity of 48,600 lbf, it performs reliably in high-demand applications.
The P4 tolerance class guarantees exceptional accuracy, making it suitable for precision machinery.

Application

Industrial Uses of 71948 ACD/P4A Bearing
71948 ACD/P4A Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The phenolic cage reduces friction, making it suitable for continuous operation in demanding environments.

In aerospace applications, 71948 ACD/P4A Bearing handles radial and axial loads in components like landing gear systems. Its P4 tolerance class guarantees the precision needed for critical flight operations.

For automation equipment, 71948 ACD/P4A Bearing supports robotic arms with smooth, low-friction movement. The chrome steel construction provides long-lasting performance even in high-speed scenarios.

Medical imaging devices benefit from 71948 ACD/P4A Bearing’s reliable operation and minimal vibration. The open design allows for easy lubrication, ensuring consistent performance in sensitive medical environments.

Q&A

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