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Super Precision Angular Contact Ball Bearings 71956 ACD/P4A

Super Precision Angular Contact Ball Bearings 71956 ACD/P4A

The 71956 ACD/P4A is a super precision angular contact ball bearing with a 280mm bore and 380mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 62100 lbf and operates smoothly at speeds up to 4000 RPM.

With a 25° contact angle and open design, it offers excellent performance in high-precision applications. The phenolic cage ensures durability and reduces friction for smoother rotation.

This bearing is ideal for machine tools or spindle systems where accuracy and reliability are crucial. It works well in temperatures ranging from -30°C to 110°C.

Weighing 12.9kg, it’s a robust choice for industrial use. Compliant with P4 tolerance standards, it ensures precise operation. Interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 71956 ACD/P4A
  • 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 No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 62100 lbf
  • Static Radial Load 96750 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 4000 rpm
  • Weight 12.9 kg
  • Price（$） 7486.866
Super Precision Angular Contact Ball Bearings 71956 ACD/P4A dimension drawing
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Features

Performance Features of 71956 ACD/P4A Bearing

71956 ACD/P4A Bearing is crafted with chrome steel rings and balls, offering strong resistance to radial loads.
Its dynamic radial load capacity reaches 62100 lbf, ensuring reliable performance in precision applications.

The phenolic cage maintains ball alignment, reducing friction and enhancing durability.
With a maximum speed of 4,000 rpm, it balances precision and efficiency.

71956 ACD/P4A Bearing operates smoothly in temperatures ranging from -30° to 110°C.
Its open design allows for easy lubrication, ensuring consistent performance over time.

The 25° contact angle provides optimal load distribution, reducing wear.
Its P4 tolerance class ensures high precision for demanding applications.

Application

Essential Roles of 71956 ACD/P4A Bearing
71956 ACD/P4A Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The phenolic cage reduces friction, making it suitable for continuous operation in demanding environments.

Where Is 71956 ACD/P4A Bearing Used?
In aerospace applications, 71956 ACD/P4A Bearing supports critical components like turbine shafts, thanks to its high dynamic load capacity. The P4 tolerance class guarantees the precision needed for such sensitive equipment.

Optimized for Performance: 71956 ACD/P4A Bearing
For automation systems, 71956 ACD/P4A Bearing provides reliable performance in robotic arms, where smooth motion is essential. Its chrome steel construction ensures durability even under frequent directional changes.

Automotive vs Aerospace: Applications of 71956 ACD/P4A Bearing
In automotive testing rigs, 71956 ACD/P4A Bearing handles high-speed rotations with minimal vibration. Meanwhile, in aerospace, its ability to manage combined loads makes it ideal for landing gear mechanisms.

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