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Super Precision Angular Contact Ball Bearings 7218 ACD/P4ADBB

Super Precision Angular Contact Ball Bearings 7218 ACD/P4ADBB

The 7218 ACD/P4ADBB is a super precision angular contact ball bearing with a 90mm bore and 160mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 44775 lbf and operates smoothly at speeds up to 17000 RPM.

Its 25° contact angle and matched arrangement (2 bearings DB) provide excellent stability for angular loads. The phenolic cage ensures quiet operation and long service life.

This bearing is lubricated for easy maintenance and works in temperatures from -30°C to 110°C. Ideal for high-precision applications like machine tool spindles or industrial pumps.

Weighing 4.53kg, it meets P4A tolerance standards for exceptional accuracy. Interchangeable with SKF bearings for reliable replacements.

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Product Parameters

  • Part Number 7218 ACD/P4ADBB
  • 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 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 44775 lbf
  • Static Radial Load 47700 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 17000 rpm
  • Weight 4.53 kg
Super Precision Angular Contact Ball Bearings 7218 ACD/P4ADBB dimension drawing
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Features

Performance Features of 7218 ACD/P4ADBB Bearing

7218 ACD/P4ADBB 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 up to 44775 lbf.

The phenolic cage maintains ball alignment, reducing friction and enhancing smooth operation.
With a maximum speed of 17,000 rpm, it balances precision and performance in demanding conditions.

7218 ACD/P4ADBB Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its light preload and P4A tolerance class ensure consistent accuracy for precision tasks.

Application

Industrial Uses of 7218 ACD/P4ADBB Bearing
The 7218 ACD/P4ADBB Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. Its light preload and matched arrangement make it suitable for applications demanding minimal deflection.

In automotive systems, 7218 ACD/P4ADBB Bearing supports high-speed components like turbochargers and transmission shafts. The phenolic cage and chrome steel construction provide durability under continuous angular loads.

For automation equipment, 7218 ACD/P4ADBB Bearing excels in robotic arms and CNC machines, offering smooth motion control. The P4A tolerance class ensures consistent performance in precision-driven environments.

Medical imaging devices benefit from 7218 ACD/P4ADBB Bearing’s reliable operation and low vibration. Its open design allows for easy lubrication, extending service life in critical applications.

In aerospace applications, 7218 ACD/P4ADBB Bearing handles radial and axial loads in flight control systems. The matched bearing set simplifies installation while maintaining high performance standards.

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