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Super Precision Angular Contact Ball Bearings 71940 ACD/HCP4A

Super Precision Angular Contact Ball Bearings 71940 ACD/HCP4A

The 71940 ACD/HCP4A is a super precision angular contact ball bearing with a 200mm bore and 280mm outer diameter, crafted from high-quality chrome steel. Its 25° contact angle and ceramic balls ensure smooth operation under heavy radial loads up to 44775 lbf.

This bearing spins efficiently at speeds up to 7500 RPM and handles temperatures from -30°C to 110°C. The phenolic cage adds durability while keeping the unit lightweight at 5.11kg.

Its open design allows for easy lubrication, and it comes with optional preload for better performance. The P4 tolerance class guarantees high precision, making it ideal for CNC machines or high-speed spindles.

Interchangeable with SKF bearings, this model is a reliable choice for industrial applications requiring both speed and accuracy. The ceramic balls reduce friction, extending the bearing’s lifespan.

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Product Parameters

  • Part Number 71940 ACD/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 200 mm
  • Bore Dia Tolerance -0.012mm to 0
  • Outer Dia 280 mm
  • Outer Dia Tolerance -0.013mm to 0
  • Width 38 mm
  • Width Tolerance -0.24mm to 0
  • Ball Dia 25.4 mm
  • Ball Qty 26
  • 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 44775 lbf
  • Static Radial Load 56250 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 7500 rpm
  • Weight 5.11 kg
  • Price（$） 4281.138
Super Precision Angular Contact Ball Bearings 71940 ACD/HCP4A dimension drawing
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Features

How Does 71940 ACD/HCP4A Bearing Reduce Friction?

71940 ACD/HCP4A Bearing features ceramic balls and a phenolic cage, significantly reducing friction during operation.
The 25° contact angle ensures smooth angular contact, enhancing precision in high-speed applications.

With a dynamic radial load capacity of 44775 lbf, it maintains performance under demanding conditions.
Its open design allows for easy lubrication, further minimising wear and extending service life.

The P4 tolerance class guarantees high precision, making it suitable for critical applications.
Operating within a temperature range of -30° to 110°C, it adapts well to varying environments.

Application

Industrial Uses of 71940 ACD/HCP4A Bearing
71940 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 high-speed spindle applications.

Where Is 71940 ACD/HCP4A Bearing Used?
In aerospace applications, 71940 ACD/HCP4A Bearing supports critical components like turbine shafts, thanks to its phenolic cage and P4 tolerance class. Its matched arrangement option further enhances performance in demanding environments.

Perfect Fit for Automation: 71940 ACD/HCP4A Bearing
71940 ACD/HCP4A Bearing excels in robotic arms, where its open design and ceramic balls provide smooth, low-friction movement. The chrome steel rings add durability, ensuring long service life in continuous operation.

Automotive vs Aerospace: Applications of 71940 ACD/HCP4A Bearing
In automotive systems, 71940 ACD/HCP4A Bearing handles high loads in gearboxes, while in aerospace, it ensures precision in flight control mechanisms. Its versatility makes it a reliable choice across industries.

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