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Super Precision Angular Contact Ball Bearings 7218 ACDGC/P4A

Super Precision Angular Contact Ball Bearings 7218 ACDGC/P4A

The 7218 ACDGC/P4A 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 27225 lbf and operates smoothly at speeds up to 17000 RPM.

With a 25° contact angle and moderate preload, it offers stable performance for angular contact applications. The open design and phenolic cage ensure reliable operation in temperatures from -30°C to 110°C.

This bearing is part of a universal matching set, suitable for back-to-back, face-to-face, or tandem arrangements. Ideal for high-precision machinery like spindles or CNC equipment where accuracy is key.

Weighing 2.27kg, it meets P4A tolerance standards for exceptional precision. Interchangeable with SKF bearings, it’s a practical choice for replacements or upgrades.

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Product Parameters

  • Part Number 7218 ACDGC/P4A
  • 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 30 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 No
  • Number Of Bearings In Matched Set 3
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 27225 lbf
  • Static Radial Load 23850 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 17000 rpm
  • Weight 2.27 kg
Super Precision Angular Contact Ball Bearings 7218 ACDGC/P4A dimension drawing
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Features

Performance Features of 7218 ACDGC/P4A Bearing

7218 ACDGC/P4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls enhance durability, supporting dynamic radial loads up to 27225 lbf.

The phenolic cage ensures smooth operation, even at high speeds of 17,000 rpm.
With a precision tolerance class of P4A, it delivers consistent performance in demanding conditions.

7218 ACDGC/P4A Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its universal matching capability allows flexible arrangements like back-to-back or face-to-face configurations.

Application

Industrial Uses of 7218 ACDGC/P4A Bearing
This bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The moderate preload helps maintain stability during heavy cutting operations.

In automotive applications, 7218 ACDGC/P4A Bearing supports high-performance gearboxes, particularly in racing or heavy-duty vehicles. Its chrome steel construction handles the demanding loads and speeds typical in these environments.

For automation systems, 7218 ACDGC/P4A Bearing is ideal for robotic arms requiring smooth, precise movement. The phenolic cage reduces friction, enhancing efficiency in repetitive tasks.

Medical imaging devices benefit from 7218 ACDGC/P4A Bearing’s reliable performance and low noise operation. The P4A tolerance class ensures the precision needed for sensitive diagnostic equipment.

In aerospace components, 7218 ACDGC/P4A Bearing’s ability to handle combined radial and axial loads makes it suitable for flight control systems. The temperature range allows it to perform reliably in varying conditions.

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