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Super Precision Angular Contact Ball Bearings 7218 ACD/P4ADBC

Super Precision Angular Contact Ball Bearings 7218 ACD/P4ADBC

The 7218 ACD/P4ADBC is a super precision angular contact ball bearing with a 90mm bore and 160mm outer diameter, crafted from durable chrome steel. Its 25° contact angle efficiently manages both radial and axial loads.

With a dynamic radial load capacity of 44775 lbf, it spins smoothly at speeds up to 17000 RPM. The phenolic cage ensures quiet operation and long service life, even under moderate preload conditions.

This matched set of two bearings in a back-to-back arrangement offers excellent stability for high-precision applications. It performs reliably in temperatures ranging from -30°C to 110°C.

Ideal for machine tools or spindle systems where precision and durability are key. Weighing 4.53kg, it’s a robust choice for demanding industrial environments. Compliant with P4A tolerance standards for exceptional accuracy.

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Product Parameters

  • Part Number 7218 ACD/P4ADBC
  • 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 Moderate / Class C
  • 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/P4ADBC dimension drawing
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Features

Performance Features of 7218 ACD/P4ADBC Bearing

7218 ACD/P4ADBC Bearing is crafted 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 in 7218 ACD/P4ADBC Bearing maintains ball alignment, reducing friction and enhancing efficiency.
With a maximum speed of 17,000 rpm, it delivers reliable performance in high-speed operations.

7218 ACD/P4ADBC Bearing operates smoothly in temperatures ranging from -30°C to 110°C.
Its matched arrangement of two bearings provides stability and precision in demanding conditions.

The moderate preload class C in 7218 ACD/P4ADBC Bearing ensures consistent performance with minimal maintenance.
Its open design allows for easy lubrication, extending service life and reducing downtime.

Application

Industrial Uses of 7218 ACD/P4ADBC Bearing
The 7218 ACD/P4ADBC Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. Its moderate preload and phenolic cage make it suitable for continuous operation in demanding environments.

In automotive applications, 7218 ACD/P4ADBC Bearing supports high-speed components like turbochargers and transmission systems. The chrome steel construction provides durability under heavy radial and angular loads.

For robotics, 7218 ACD/P4ADBC Bearing offers reliable performance in articulated arms and precision movement systems. The matched bearing arrangement enhances stability, which is crucial for repetitive tasks.

In medical imaging devices, 7218 ACD/P4ADBC Bearing’s low tolerance and smooth operation contribute to precise positioning. The open design allows for easy lubrication, extending service life in critical applications.

Consumer electronics like high-end printers benefit from 7218 ACD/P4ADBC Bearing’s quiet and efficient performance. Its balanced design reduces vibration, ensuring consistent operation in compact spaces.

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