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Super Precision Angular Contact Ball Bearings 71972 ACDMA/P4A

Super Precision Angular Contact Ball Bearings 71972 ACDMA/P4A

The 71972 ACDMA/P4A is a super precision angular contact ball bearing with a 360mm bore and 480mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 83475 lbf and operates smoothly at speeds up to 3200 RPM.

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

This bearing is suitable for use in temperatures ranging from -30°C to 110°C and comes pre-lubricated for easy installation. Its P4 tolerance class (ABEC-7) guarantees precise and consistent operation.

Ideal for machine tools, spindles, and other high-precision machinery, this bearing is interchangeable with SKF models. Weighing 26.7kg, it’s robust yet designed for precision and long service life.

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Product Parameters

  • Part Number 71972 ACDMA/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 360 mm
  • Bore Dia Tolerance -0.016mm to 0
  • Outer Dia 480 mm
  • Outer Dia Tolerance -0.02mm to 0
  • Width 56 mm
  • Width Tolerance -0.3mm to 0
  • Ball Dia 38.1 mm
  • Ball Qty 30
  • 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 83475 lbf
  • Static Radial Load 150750 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 3200 rpm
  • Weight 26.7 kg
  • Price（$） 1394.433
Super Precision Angular Contact Ball Bearings 71972 ACDMA/P4A dimension drawing
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Features

Performance Features of 71972 ACDMA/P4A Bearing

71972 ACDMA/P4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls provide strong resistance to both dynamic and static radial loads.

The phenolic cage ensures smooth operation, reducing friction and wear even at high speeds.
With a maximum speed of 3,200 rpm, it balances performance and durability in precision tasks.

71972 ACDMA/P4A Bearing operates efficiently within a temperature range of -30° to 110°C.
Its P4 tolerance class guarantees high precision, making it suitable for demanding industrial applications.

Application

Where Is 71972 ACDMA/P4A Bearing Used?
71972 ACDMA/P4A Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate radial and axial load handling. The phenolic cage material reduces friction, making it suitable for high-speed operations.

In robotics, 71972 ACDMA/P4A Bearing supports articulated arms and joints, providing smooth movement and durability. Its P4 tolerance class ensures consistent performance in automated systems.

For aerospace applications, 71972 ACDMA/P4A Bearing’s chrome steel construction offers reliability in demanding conditions. The open seal type allows for easy lubrication, extending its service life in critical components.

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