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Super Precision Angular Contact Ball Bearings 71964 ACDMA/P4A

Super Precision Angular Contact Ball Bearings 71964 ACDMA/P4A

The 71964 ACDMA/P4A is a super precision angular contact ball bearing with a 320mm bore and 440mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 78975 lbf and operates smoothly at speeds up to 3600 RPM.

With a 25° contact angle and open design, it offers excellent performance for angular loads. The phenolic cage ensures durability and reduces friction, making it suitable for high-precision applications.

This bearing comes preloaded and is available in matched arrangements, ideal for machinery requiring tight tolerances. It works well in temperatures from -30°C to 110°C.

Weighing 24kg, it’s robust yet precise, perfect for use in industrial equipment like spindles or machine tools. Compliant with ABEC-7 standards for reliable performance.

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Product Parameters

  • Part Number 71964 ACDMA/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 320 mm
  • Bore Dia Tolerance -0.016mm to 0
  • Outer Dia 440 mm
  • Outer Dia Tolerance -0.02mm to 0
  • Width 56 mm
  • Width Tolerance -0.3mm to 0
  • Ball Dia 38.1 mm
  • Ball Qty 27
  • Contact Angle 25°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Available
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 78975 lbf
  • Static Radial Load 131625 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 3600 rpm
  • Weight 24 kg
  • Price（$） 991.566
Super Precision Angular Contact Ball Bearings 71964 ACDMA/P4A dimension drawing
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Features

Performance Features of 71964 ACDMA/P4A Bearing

71964 ACDMA/P4A 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 minimises friction and wear.

With a dynamic radial load capacity of 78,975 lbf, it handles demanding conditions reliably.
The P4 tolerance class guarantees high precision, making it suitable for critical applications.

71964 ACDMA/P4A Bearing operates smoothly at speeds up to 3,600 rpm.
Its open design allows for easy lubrication, maintaining performance in temperatures from -30° to 110°C.

Application

Industrial Uses of 71964 ACDMA/P4A Bearing
71964 ACDMA/P4A Bearing is commonly used in high-precision machine tools, where its 25° contact angle ensures accurate radial and axial load distribution. The open design and phenolic cage make it suitable for high-speed operations in industrial settings.

In automotive applications, 71964 ACDMA/P4A Bearing supports components like wheel hubs and transmissions, providing reliable performance under heavy loads. Its metric sizing and P4 tolerance class ensure compatibility with precision-engineered systems.

For medical imaging devices, 71964 ACDMA/P4A Bearing’s chrome steel construction offers durability and smooth operation. The lubricated design reduces friction, making it ideal for sensitive equipment requiring consistent performance.

Automation and robotics benefit from 71964 ACDMA/P4A Bearing’s matched arrangement, which enhances stability in robotic arms and CNC machines. The preload option further improves precision in repetitive tasks.

In consumer electronics, 71964 ACDMA/P4A Bearing can be found in high-end printers and scanners, where its quiet operation and reliability are key. The temperature range ensures performance in various environmental conditions.

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