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Super Precision Angular Contact Ball Bearings 7044 ACD/P4ADBA

Super Precision Angular Contact Ball Bearings 7044 ACD/P4ADBA

The 7044 ACD/P4ADBA is a super precision angular contact ball bearing with a 220mm bore and 340mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 117000 lbf and operates smoothly at speeds up to 6300 RPM.

Its 25° contact angle and matched arrangement (2 bearings DB) provide excellent stability for angular loads. The phenolic cage ensures quiet, long-lasting performance even under high stress.

Designed for extra light preload (Class A), this bearing suits applications requiring minimal friction. Ideal for precision machinery like spindles or high-performance gearboxes.

Weighing 32.1kg, it’s robust yet optimised for precision. Compliant with P4A tolerance standards, it’s interchangeable with SKF bearings for easy replacement. Works in temperatures from -30°C to 110°C.

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Product Parameters

  • Part Number 7044 ACD/P4ADBA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 220 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 340 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 112 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 38.1 mm
  • Ball Qty 21
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 2 bearings <> DB
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 117000 lbf
  • Static Radial Load 198000 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 6300 rpm
  • Weight 32.1 kg
  • Price（$） 2742.21
Super Precision Angular Contact Ball Bearings 7044 ACD/P4ADBA dimension drawing
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Features

Performance Features of 7044 ACD/P4ADBA Bearing

7044 ACD/P4ADBA Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls provide high strength, supporting dynamic radial loads up to 117,000 lbf.

The phenolic cage ensures smooth operation, reducing friction and wear even at high speeds.
With a maximum speed of 6,300 rpm, it balances performance and durability in precision settings.

7044 ACD/P4ADBA Bearing operates efficiently in temperatures ranging from -30°C to 110°C.
Its extra light preload (Class A) enhances precision, making it ideal for demanding industrial applications.

Application

Industrial Uses of 7044 ACD/P4ADBA Bearing
7044 ACD/P4ADBA Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate radial and axial load handling. The matched arrangement of two bearings provides stability in demanding industrial environments.

In aerospace applications, 7044 ACD/P4ADBA Bearing supports components like turbine shafts, thanks to its extra-light preload and phenolic cage. Its P4A tolerance class makes it suitable for critical systems requiring minimal vibration.

For robotics, 7044 ACD/P4ADBA Bearing’s chrome steel construction offers durability in articulated arms and precision joints. The open seal type allows for easy lubrication, extending service life in continuous operation.

Automotive vs Aerospace: Applications of 7044 ACD/P4ADBA Bearing
In automotive systems, 7044 ACD/P4ADBA Bearing is ideal for high-performance gearboxes, where its dynamic radial load capacity ensures smooth power transmission. The metric sizing fits seamlessly into European and Asian vehicle designs.

Aerospace applications benefit from 7044 ACD/P4ADBA Bearing’s ability to handle extreme loads in turbine engines. The temperature range of -30°C to 110°C ensures reliability in varying flight conditions.

What Makes 7044 ACD/P4ADBA Bearing a Preferred Choice?
7044 ACD/P4ADBA Bearing stands out in medical imaging devices due to its precise angular contact and low vibration. The phenolic cage reduces friction, making it suitable for sensitive equipment.

In automation, 7044 ACD/P4ADBA Bearing’s extra-light preload enhances performance in high-speed robotic arms. Its compatibility with SKF bearings simplifies maintenance and replacement.

Q&A

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