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Super Precision Angular Contact Ball Bearings 7208 ACD/P4ADBB

Super Precision Angular Contact Ball Bearings 7208 ACD/P4ADBB

The 7208 ACD/P4ADBB is a super precision angular contact ball bearing with a 40mm bore and 80mm outer diameter, designed for high-speed applications. It features a 25° contact angle and comes in a matched set of two bearings for balanced performance.

Made from chrome steel with a phenolic cage, it handles radial loads up to 11700 lbf and spins smoothly at speeds up to 41000 RPM. Its light preload ensures minimal friction, making it energy-efficient.

The open design allows easy lubrication, while the P4A tolerance class guarantees precise operation. Ideal for machine tools or spindles where accuracy and speed are critical.

Weighing 0.75kg, it’s robust yet manageable for its size. Compatible with SKF bearings, it’s a reliable choice for replacements or upgrades. Works well in temperatures from -30°C to 110°C.

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Product Parameters

  • Part Number 7208 ACD/P4ADBB
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 40 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 80 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 36 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 11.112 mm
  • Ball Qty 14
  • 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 Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 11700 lbf
  • Static Radial Load 10238 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 0.75 kg
  • Price（$） 16.965
Super Precision Angular Contact Ball Bearings 7208 ACD/P4ADBB dimension drawing
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Features

Performance Features of 7208 ACD/P4ADBB Bearing

7208 ACD/P4ADBB Bearing is designed with a 25° contact angle, optimising load distribution for precision applications.
Its chrome steel rings and balls ensure durability under dynamic radial loads up to 11700 lbf.

The matched arrangement of two bearings in a DB configuration enhances stability and performance.
With a maximum speed of 41,000 rpm, it delivers efficient operation in high-speed environments.

Phenolic cage material reduces friction and noise, making it suitable for precision instruments.
The P4A tolerance class ensures consistent accuracy and reliability in demanding conditions.

7208 ACD/P4ADBB Bearing operates smoothly within a temperature range of -30°C to 110°C.
Its preload class B design provides balanced performance for angular contact applications.

Application

Super Precision Angular Contact Ball Bearings 7208 ACD/P4ADBB are commonly used in high-speed machine tools, where their 25° contact angle ensures accurate radial and axial load handling.
The matched pair design with light preload makes 7208 ACD/P4ADBB ideal for spindle applications, reducing vibration and improving machining precision.

In automotive transmissions, 7208 ACD/P4ADBB supports smooth gear shifts thanks to its phenolic cage and chrome steel construction.
Its metric sizing and P4A tolerance class make it a reliable choice for performance vehicles requiring tight clearances.

For robotics and automation, 7208 ACD/P4ADBB excels in articulated arms and precision positioning systems.
The open design allows for easy lubrication, extending service life in continuous operation environments.

Medical imaging devices benefit from 7208 ACD/P4ADBB’s low-noise performance and consistent accuracy.
The bearing’s temperature stability ensures reliable operation in diagnostic equipment like MRI scanners.

In aerospace applications, 7208 ACD/P4ADBB handles both radial and thrust loads in auxiliary systems.
Its high-speed capability (up to 41,000 rpm) makes it suitable for turbine monitoring instruments.

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