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Super Precision Angular Contact Ball Bearings 7218 ACD/P4AQBCB

Super Precision Angular Contact Ball Bearings 7218 ACD/P4AQBCB

The 7218 ACD/P4AQBCB 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 matched set of four bearings ensure smooth operation under angular loads.

This bearing handles dynamic radial loads up to 73125 lbf and spins at speeds up to 17000 RPM, making it suitable for high-performance applications. The phenolic cage adds durability while keeping the weight manageable at 9.06kg.

Its open design allows for easy lubrication, and the P4A tolerance class ensures exceptional precision. The bearing operates efficiently in temperatures ranging from -30°C to 110°C.

Ideal for use in machine tools, spindles, or other high-speed machinery where precision and reliability are crucial. The matched set arrangement (QBC) provides balanced performance, though it’s not universally interchangeable.

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Product Parameters

  • Part Number 7218 ACD/P4AQBCB
  • 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 Light / Class B
  • 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/P4AQBCB dimension drawing
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Features

Engineered for Precision: 7218 ACD/P4AQBCB Bearing

7218 ACD/P4AQBCB Bearing features a 25° contact angle, optimised for high-precision angular contact applications.
Its chrome steel construction ensures durability and reliable performance under dynamic radial loads up to 73125 lbf.

The phenolic cage maintains ball alignment, reducing friction and enhancing operational smoothness.
With a maximum speed of 17,000 rpm, it delivers efficiency without compromising precision.

Designed for matched arrangements, 7218 ACD/P4AQBCB Bearing offers consistent performance in demanding setups.
Its P4A tolerance class guarantees exceptional accuracy for critical applications.

Application

Industrial Uses of 7218 ACD/P4AQBCB Bearing
The 7218 ACD/P4AQBCB Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. Its phenolic cage offers smooth operation, reducing friction during high-speed machining.

In automotive applications, 7218 ACD/P4AQBCB Bearing supports gearbox systems, providing reliable performance under radial and axial loads. The light preload setting helps maintain precise alignment in demanding driving conditions.

For medical imaging devices, 7218 ACD/P4AQBCB Bearing’s P4A tolerance class delivers the consistency needed for clear scans. The chrome steel construction ensures long-lasting performance in critical healthcare environments.

Automation systems benefit from 7218 ACD/P4AQBCB Bearing’s matched arrangement, which enhances stability in robotic arms. Its high-speed capability makes it suitable for repetitive, precision tasks.

In consumer electronics, 7218 ACD/P4AQBCB Bearing can be found in high-end printers, where its durability supports smooth paper handling. The lubricated design ensures quiet operation for office environments.

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