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Super Precision Angular Contact Ball Bearings 7218 ACD/P4ADGA

Super Precision Angular Contact Ball Bearings 7218 ACD/P4ADGA

The 7218 ACD/P4ADGA is a super precision angular contact ball bearing with a 90mm bore and 160mm outer diameter, crafted from high-quality chrome steel. Its 25° contact angle and universal matching design ensure smooth operation under radial and axial loads.

With a dynamic radial load capacity of 44775 lbf, it handles high speeds up to 17000 RPM. The phenolic cage and open design allow for easy lubrication and long service life.

This bearing comes in a matched set of two, suitable for back-to-back, face-to-face, or tandem arrangements. Ideal for precision applications like machine tool spindles or high-speed robotics.

Weighing 4.53kg, it operates efficiently in temperatures from -30°C to 110°C. Compliant with P4A tolerance class for exceptional accuracy.

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Product Parameters

  • Part Number 7218 ACD/P4ADGA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 90 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 160 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 60 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 22.225 mm
  • Ball Qty 16
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Universal matching
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 44775 lbf
  • Static Radial Load 47700 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 17000 rpm
  • Weight 4.53 kg
  • Price（$） 585.648
Super Precision Angular Contact Ball Bearings 7218 ACD/P4ADGA dimension drawing
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Features

Performance Features of 7218 ACD/P4ADGA Bearing

7218 ACD/P4ADGA Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability under high dynamic radial loads of 44775 lbf.

The phenolic cage maintains ball alignment, reducing friction and enhancing performance at speeds up to 17,000 rpm.
Universal matching allows flexible arrangement in back-to-back, face-to-face, or tandem configurations.

With a P4A tolerance class, 7218 ACD/P4ADGA Bearing delivers precision in demanding industrial environments.
Its extra light preload ensures smooth operation while minimising energy consumption.

The open design simplifies lubrication, extending service life in temperatures from -30°C to 110°C.
Weighing 4.53 kg, it balances robustness with manageable handling during installation.

Application

Industrial Uses of 7218 ACD/P4ADGA Bearing
7218 ACD/P4ADGA Bearing is commonly used in high-precision machine tools, where its 25° contact angle ensures accurate radial and axial load handling. The universal matching design allows for flexible arrangements in back-to-back or face-to-face configurations.

Where Is 7218 ACD/P4ADGA Bearing Used?
In automotive applications, 7218 ACD/P4ADGA Bearing supports high-speed spindle systems, such as those found in electric vehicle motors. Its phenolic cage and chrome steel construction provide durability and smooth operation under demanding conditions.

Optimized for Performance: 7218 ACD/P4ADGA Bearing
For automation and robotics, 7218 ACD/P4ADGA Bearing excels in robotic arms and CNC machinery, thanks to its P4A tolerance class and extra-light preload. The lubricated design ensures consistent performance even at high speeds.

Medical vs Industrial: Where 7218 ACD/P4ADGA Bearing Excels
In medical imaging devices, 7218 ACD/P4ADGA Bearing offers reliable precision, while in industrial settings, it handles heavy loads in gearboxes and pumps. The open seal type allows for easy maintenance in both environments.

Essential Roles of 7218 ACD/P4ADGA Bearing
7218 ACD/P4ADGA Bearing is a key component in aerospace applications, particularly in aircraft landing gear systems. Its high dynamic radial load capacity and temperature range make it suitable for extreme conditions.

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