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Super Precision Angular Contact Ball Bearings 7218 ACD/P4ATGB

Super Precision Angular Contact Ball Bearings 7218 ACD/P4ATGB

The 7218 ACD/P4ATGB 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 59625 lbf and operates smoothly at speeds up to 17000 RPM.

With a 25° contact angle and universal matching design, it offers flexibility for back-to-back, face-to-face, or tandem arrangements. The phenolic cage ensures quiet and efficient performance.

Ideal for high-precision applications like machine tool spindles or robotics, this bearing works in temperatures from -30°C to 110°C. Its P4A tolerance class guarantees exceptional accuracy.

Weighing 6.8kg, it comes as a set of three for matched installations. Compliant with industry standards, it’s interchangeable with SKF bearings for easy replacements.

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Product Parameters

  • Part Number 7218 ACD/P4ATGB
  • 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 90 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 Universal matching
  • Number Of Bearings In Matched Set 3
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 59625 lbf
  • Static Radial Load 72000 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 17000 rpm
  • Weight 6.8 kg
Super Precision Angular Contact Ball Bearings 7218 ACD/P4ATGB dimension drawing
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Features

Performance Features of 7218 ACD/P4ATGB Bearing

7218 ACD/P4ATGB 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 up to 59,625 lbf.

The phenolic cage maintains ball alignment, reducing friction and enhancing operational smoothness.
With a maximum speed of 17,000 rpm, it delivers reliable performance in high-speed scenarios.

Universal matching allows flexible arrangements like back-to-back or face-to-face configurations.
This design versatility makes 7218 ACD/P4ATGB Bearing suitable for complex machinery setups.

Operating between -30°C to 110°C, it performs consistently in varied temperature conditions.
The P4A tolerance class ensures precision, meeting demanding industrial standards.

Application

Industrial Uses of 7218 ACD/P4ATGB Bearing
7218 ACD/P4ATGB Bearing is commonly used in high-precision machine tools, where its angular contact design handles both radial and axial loads efficiently. The universal matching feature allows for flexible configurations in complex setups.

In automotive applications, 7218 ACD/P4ATGB Bearing is ideal for high-speed gearboxes and electric motor systems, thanks to its light preload and smooth operation. The phenolic cage reduces friction, enhancing performance in demanding conditions.

For robotics and automation, 7218 ACD/P4ATGB Bearing ensures precise movement in robotic arms and CNC machinery. Its P4A tolerance class guarantees consistent accuracy, even under heavy loads.

Medical imaging devices benefit from 7218 ACD/P4ATGB Bearing’s reliability and low noise levels. The chrome steel construction ensures durability in sensitive environments where precision is critical.

Q&A

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