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Super Precision Angular Contact Ball Bearings 71964 CDMA/P4A

Super Precision Angular Contact Ball Bearings 71964 CDMA/P4A

The 71964 CDMA/P4A is a super precision angular contact ball bearing with a 320mm bore and 440mm outer diameter, designed for high accuracy applications. Its 15° contact angle efficiently handles both radial and axial loads, with dynamic radial load capacity up to 84825 lbf.

Made from durable chrome steel with a phenolic cage, it offers smooth operation at speeds up to 4000 RPM. The open design allows for easy lubrication, while the P4 tolerance class ensures exceptional running precision.

This bearing is available in matched sets for paired mounting, providing consistent performance. Ideal for machine tool spindles or high-precision industrial equipment where accuracy is critical.

Weighing 24kg, it’s built to last in temperatures from -30°C to 110°C. Interchangeable with SKF bearings, it’s a reliable choice for maintenance or upgrades.

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Product Parameters

  • Part Number 71964 CDMA/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 15°
  • 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 84825 lbf
  • Static Radial Load 139500 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 4000 rpm
  • Weight 24 kg
  • Price（$） 991.386
Super Precision Angular Contact Ball Bearings 71964 CDMA/P4A dimension drawing
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Features

Performance Features of 71964 CDMA/P4A Bearing

71964 CDMA/P4A Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability and resistance to wear under high radial loads.

The phenolic cage in 71964 CDMA/P4A Bearing reduces friction and maintains ball alignment for smooth operation.
With a dynamic radial load capacity of 84,825 lbf, it handles demanding conditions reliably.

71964 CDMA/P4A Bearing operates efficiently at speeds up to 4,000 rpm, balancing performance and longevity.
Its open design allows for easy lubrication, ensuring consistent performance over time.

The P4 tolerance class of 71964 CDMA/P4A Bearing guarantees precision, making it suitable for high-accuracy applications.
Its temperature range of -30° to 110°C ensures stable performance in various environments.

Application

Key Fields for 71964 CDMA/P4A Bearing
In precision machine tools, 71964 CDMA/P4A Bearing excels due to its 15° contact angle and P4 tolerance class, ensuring minimal vibration during high-speed operations. The phenolic cage offers stability under heavy radial loads, making it ideal for grinding spindles.

How Does 71964 CDMA/P4A Bearing Improve Performance?
For aerospace applications like helicopter gearboxes, 71964 CDMA/P4A Bearing’s matched arrangement reduces alignment issues. Its chrome steel construction handles dynamic loads reliably, even in demanding flight conditions.

Built for Heavy-Duty Use: 71964 CDMA/P4A Bearing
Large industrial pumps benefit from 71964 CDMA/P4A Bearing’s 440mm outer diameter, which distributes loads evenly. The lubricated design extends service life in continuous operation environments.

Automotive vs Aerospace: Applications of 71964 CDMA/P4A Bearing
In automotive testing rigs, 71964 CDMA/P4A Bearing’s preload capability ensures accurate measurements. Meanwhile, its temperature range (-30° to 110°C) suits jet engine components where thermal stability is critical.

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