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Super Precision Angular Contact Ball Bearings 7040 ACD/P4ADBA

Super Precision Angular Contact Ball Bearings 7040 ACD/P4ADBA

The 7040 ACD/P4ADBA is a super precision angular contact ball bearing with a 200mm bore and 310mm outer diameter, crafted from high-grade chrome steel. It handles heavy radial loads up to 103950 lbf and operates smoothly at speeds up to 16250 RPM.

Its 25° contact angle and matched DB arrangement (two bearings) provide excellent stability for angular loads. The phenolic cage ensures quiet operation and durability, even under extra light preload conditions.

This open-design bearing comes pre-lubricated and works in temperatures from -30°C to 110°C. With P4A tolerance class, it’s ideal for high-precision applications like machine tool spindles or high-speed industrial equipment.

Weighing 24.6kg, it’s robust yet designed for precision performance. Interchangeable with SKF bearings, making replacements straightforward. The set includes two matched bearings for balanced load distribution.

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Product Parameters

  • Part Number 7040 ACD/P4ADBA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 200 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 310 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 102 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 34.925 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 103950 lbf
  • Static Radial Load 165375 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16250 rpm
  • Weight 24.6 kg
Super Precision Angular Contact Ball Bearings 7040 ACD/P4ADBA dimension drawing
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Features

Performance Features of 7040 ACD/P4ADBA Bearing

7040 ACD/P4ADBA Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
The matched arrangement of two bearings ensures stability and precision in high-speed operations.

Constructed from chrome steel rings and balls, 7040 ACD/P4ADBA Bearing offers strong resistance to dynamic radial loads up to 103950 lbf.
Its phenolic cage maintains ball alignment, reducing friction and wear.

With a maximum speed of 16,250 rpm, 7040 ACD/P4ADBA Bearing balances performance and durability.
The P4A tolerance class ensures high precision, making it suitable for demanding applications.

7040 ACD/P4ADBA Bearing operates efficiently in temperatures ranging from -30°C to 110°C.
Its open design allows for easy lubrication, enhancing long-term reliability.

The extra light preload of Class A ensures smooth operation without excessive friction.
This makes 7040 ACD/P4ADBA Bearing ideal for precision machinery requiring minimal vibration.

Application

Industrial Uses of 7040 ACD/P4ADBA Bearing
7040 ACD/P4ADBA Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The matched arrangement of two bearings provides stability under heavy radial loads.

In aerospace applications, 7040 ACD/P4ADBA Bearing supports critical components like turbine shafts, thanks to its high-speed capability and reliable performance. The phenolic cage material helps reduce friction and heat buildup.

For automation systems, 7040 ACD/P4ADBA Bearing is ideal for robotic arms, offering smooth movement and precise positioning. Its extra light preload makes it suitable for delicate operations requiring minimal resistance.

Medical imaging devices benefit from 7040 ACD/P4ADBA Bearing’s consistent performance and low noise levels. The chrome steel construction ensures durability in demanding healthcare environments.

In electric motors, 7040 ACD/P4ADBA Bearing handles high-speed rotations efficiently, making it a reliable choice for industrial and automotive applications. The open design allows for easy lubrication and maintenance.

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