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Super Precision Angular Contact Ball Bearings 7218 ACD/P4AQBCC

Super Precision Angular Contact Ball Bearings 7218 ACD/P4AQBCC

The 7218 ACD/P4AQBCC is a super precision angular contact ball bearing with a 90mm bore and 160mm outer diameter, crafted from high-quality chrome steel. It features a 25° contact angle and comes in a matched set of four bearings for balanced performance.

This bearing handles radial loads up to 73125 lbf and operates smoothly at speeds up to 17000 RPM. Its phenolic cage ensures durability while the open design allows for easy lubrication.

The moderate preload (Class C) enhances stability, making it suitable 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 load capacity are crucial. Weighing 9.06kg, it’s robust yet manageable for its size. Compliant with P4A tolerance standards for consistent accuracy.

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Product Parameters

  • Part Number 7218 ACD/P4AQBCC
  • 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 120 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 4 bearings <<>> QBC
  • Number Of Bearings In Matched Set 4
  • 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 73125 lbf
  • Static Radial Load 95625 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 17000 rpm
  • Weight 9.06 kg
Super Precision Angular Contact Ball Bearings 7218 ACD/P4AQBCC dimension drawing
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Features

Performance Features of 7218 ACD/P4AQBCC Bearing

7218 ACD/P4AQBCC 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 73125 lbf.

The phenolic cage ensures smooth operation, even at high speeds of 17,000 rpm.
This bearing set includes four matched units, providing consistent performance in precision tasks.

With a moderate preload (Class C), 7218 ACD/P4AQBCC Bearing maintains stability under varying loads.
Its open design allows for easy lubrication, extending service life in demanding conditions.

Application

Industrial Uses of 7218 ACD/P4AQBCC Bearing
7218 ACD/P4AQBCC Bearing is commonly used in high-precision machine tools, where its moderate preload and angular contact design ensure accurate spindle performance. The phenolic cage reduces friction, making it suitable for prolonged operation.

In automotive applications, 7218 ACD/P4AQBCC Bearing supports wheel hubs and transmission systems, handling both radial and axial loads efficiently. Its P4A tolerance class guarantees consistent performance in demanding conditions.

For robotics, 7218 ACD/P4AQBCC Bearing’s matched arrangement of four bearings provides stability in articulated arms and precision movements. The chrome steel construction offers durability in high-speed scenarios.

Medical imaging devices benefit from 7218 ACD/P4AQBCC Bearing’s smooth operation and low noise levels. The open design allows for easy lubrication, ensuring long service life in critical equipment.

In aerospace, 7218 ACD/P4AQBCC Bearing is trusted for its reliability in flight control systems. The temperature range of -30°C to 110°C makes it adaptable to various environmental conditions.

Q&A

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