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Super Precision Angular Contact Ball Bearings 71968 ACDMA/P4A

Super Precision Angular Contact Ball Bearings 71968 ACDMA/P4A

The 71968 ACDMA/P4A is a super precision angular contact ball bearing with a 340mm bore and 460mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 81900 lbf and operates smoothly at speeds up to 3400 RPM.

With a 25° contact angle and open design, it offers excellent performance in high-precision applications. The phenolic cage ensures quiet operation and long service life, even under heavy loads.

This bearing is available with preload and matched arrangements, making it versatile for complex setups. It works well in temperatures from -30°C to 110°C, suitable for industrial machinery or precision equipment.

Weighing 25.5kg, it’s a robust choice for demanding environments. Compliant with P4 tolerance class (ABEC-7), it ensures reliable accuracy and interchangeability with SKF bearings.

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Product Parameters

  • Part Number 71968 ACDMA/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 340 mm
  • Bore Dia Tolerance -0.016mm to 0
  • Outer Dia 460 mm
  • Outer Dia Tolerance -0.02mm to 0
  • Width 56 mm
  • Width Tolerance -0.3mm to 0
  • Ball Dia 38.1 mm
  • Ball Qty 29
  • 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 81900 lbf
  • Static Radial Load 144000 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 3400 rpm
  • Weight 25.5 kg
  • Price（$） 11386.71
Super Precision Angular Contact Ball Bearings 71968 ACDMA/P4A dimension drawing
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Features

Performance Features of 71968 ACDMA/P4A Bearing

71968 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 and reduces friction, enhancing the bearing’s efficiency.
With a maximum speed of 3,400 rpm, it balances high performance and durability.

71968 ACDMA/P4A Bearing operates in temperatures from -30° to 110°C, making it suitable for varied environments.
Its precision P4 tolerance class ensures reliable performance in demanding applications.

Application

Industrial Uses of 71968 ACDMA/P4A Bearing
71968 ACDMA/P4A Bearing is commonly used in high-precision machine tools, where its 25° contact angle ensures accurate radial and axial load handling. The phenolic cage offers smooth operation at speeds up to 3,400 rpm, making it suitable for demanding industrial environments.

In aerospace applications, 71968 ACDMA/P4A Bearing supports critical components like turbine shafts, thanks to its P4 tolerance class and chrome steel construction. Its matched arrangement option further enhances performance in paired bearing setups.

For automation systems, 71968 ACDMA/P4A Bearing’s open design and lubrication compatibility make it ideal for robotic arms and CNC machinery. The large bore size (340 mm) accommodates heavy-duty shafts while maintaining precision.

Medical imaging devices benefit from 71968 ACDMA/P4A Bearing’s low vibration and high static radial load capacity (144,000 lbf). Its temperature range (-30° to 110°C) ensures reliability in sterilisation processes.

In energy sector equipment like wind turbines, 71968 ACDMA/P4A Bearing handles combined loads efficiently. The 38.1 mm ball diameter and 29-ball configuration distribute stress evenly for extended service life.

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