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Super Precision Angular Contact Ball Bearings 71956 ACD/HCP4A

Super Precision Angular Contact Ball Bearings 71956 ACD/HCP4A

The 71956 ACD/HCP4A is a super precision angular contact ball bearing with a 280mm bore and 380mm outer diameter, designed for high-performance applications. Its 25° contact angle efficiently handles combined radial and axial loads up to 62100 lbf.

Made from chrome steel rings and ceramic balls, it offers low friction and long service life. The phenolic cage ensures smooth operation at speeds up to 5000 RPM.

This open-design bearing comes pre-lubricated and can operate in temperatures from -30°C to 110°C. Its P4 tolerance class (ABEC-7) guarantees exceptional running accuracy.

Ideal for machine tool spindles or high-speed industrial equipment where precision is critical. Weighing 11.1kg, it’s robust yet suitable for matched arrangements when needed. Compatible with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 71956 ACD/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 280 mm
  • Bore Dia Tolerance -0.013mm to 0
  • Outer Dia 380 mm
  • Outer Dia Tolerance -0.015mm to 0
  • Width 46 mm
  • Width Tolerance -0.24mm to 0
  • Ball Dia 30.162 mm
  • Ball Qty 31
  • 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 Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 62100 lbf
  • Static Radial Load 96750 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 5000 rpm
  • Weight 11.1 kg
  • Price（$） 7486.821
Super Precision Angular Contact Ball Bearings 71956 ACD/HCP4A dimension drawing
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Features

Performance Features of 71956 ACD/HCP4A Bearing

71956 ACD/HCP4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and ceramic balls enhance durability while reducing friction for smoother operation.

The phenolic cage maintains ball alignment, ensuring consistent performance even at high speeds up to 5,000 rpm.
With a dynamic radial load capacity of 62,100 lbf, it handles demanding conditions reliably.

71956 ACD/HCP4A Bearing operates efficiently within a temperature range of -30° to 110°C.
Its precision P4 tolerance class ensures high accuracy for critical applications.

Application

Industrial Uses of 71956 ACD/HCP4A Bearing
71956 ACD/HCP4A Bearing is commonly used in high-precision machine tools, where its 25° contact angle ensures accurate radial and axial load handling. The ceramic balls reduce friction, making it ideal for applications requiring smooth, high-speed rotation.

In aerospace components, 71956 ACD/HCP4A Bearing provides reliable performance in gearboxes and rotor systems. Its phenolic cage offers lightweight durability, which is crucial for reducing overall aircraft weight.

For automation systems, 71956 ACD/HCP4A Bearing supports robotic arms and CNC machinery with its P4 tolerance class. The matched arrangement option further enhances precision in synchronized movements.

Medical imaging devices benefit from 71956 ACD/HCP4A Bearing’s low heat generation and stable operation. The chrome steel rings ensure long-term reliability in critical diagnostic equipment.

In energy sector applications like wind turbines, 71956 ACD/HCP4A Bearing handles heavy loads with ease. Its lubricated design minimizes maintenance needs in harsh outdoor environments.

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