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Super Precision Angular Contact Ball Bearings 7040 ACD/P4A

Super Precision Angular Contact Ball Bearings 7040 ACD/P4A

The 7040 ACD/P4A is a super precision angular contact ball bearing with a 200mm bore and 310mm outer diameter, crafted from high-quality chrome steel. Its 25° contact angle efficiently manages both radial and axial loads, supporting up to 63225 lbf dynamically.

Designed for high-speed applications, it can reach up to 6000 RPM while maintaining smooth operation. The open seal type allows for easy lubrication, and the phenolic cage ensures durability under stress.

With a P4 tolerance class, this bearing offers exceptional accuracy, making it ideal for machine tools or precision equipment. It operates reliably in temperatures ranging from -30°C to 110°C.

Weighing 12.3kg, it’s robust yet manageable for its size. Compatible with SKF bearings, it’s a practical choice for replacements or upgrades in demanding industrial settings.

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Product Parameters

  • Part Number 7040 ACD/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 200 mm
  • Bore Dia Tolerance -0.012mm to 0
  • Outer Dia 310 mm
  • Outer Dia Tolerance -0.013mm to 0
  • Width 51 mm
  • Width Tolerance -0.3mm to 0
  • Ball Dia 34.925 mm
  • Ball Qty 21
  • 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 63225 lbf
  • Static Radial Load 82125 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 6000 rpm
  • Weight 12.3 kg
  • Price（$） 1313.478
Super Precision Angular Contact Ball Bearings 7040 ACD/P4A dimension drawing
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Features

Performance Features of 7040 ACD/P4A Bearing

7040 ACD/P4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.

Its chrome steel rings and balls enhance durability, supporting dynamic radial loads up to 63,225 lbf.

The phenolic cage ensures smooth operation, even at high speeds of 6,000 rpm.

With a P4 tolerance class, it delivers precision performance in demanding conditions.

Application

Key Fields for 7040 ACD/P4A Bearing
7040 ACD/P4A Bearing is widely 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.

In robotics, 7040 ACD/P4A Bearing provides stability for articulated arms, handling both radial and axial loads efficiently. Its P4 tolerance class guarantees the precision needed for repetitive tasks in automated systems.

For aerospace applications, 7040 ACD/P4A Bearing’s chrome steel construction withstands extreme conditions while maintaining performance. The open seal type allows for custom lubrication, adapting to specific operational requirements.

Where Is 7040 ACD/P4A Bearing Used?
You’ll often find 7040 ACD/P4A Bearing in medical imaging devices, where smooth rotation is critical for clear scans. Its high dynamic radial load capacity ensures reliability in diagnostic equipment.

Built for Heavy-Duty Use: 7040 ACD/P4A Bearing
7040 ACD/P4A Bearing excels in industrial gearboxes, handling high speeds and loads without compromising precision. The 25° contact angle optimises load distribution, extending service life.

Automotive vs Aerospace: Applications of 7040 ACD/P4A Bearing
In automotive testing rigs, 7040 ACD/P4A Bearing supports precise measurements under varying loads. For aircraft landing gear systems, its temperature resistance ensures consistent performance from -30° to 110°C.

Q&A

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