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Super Precision Angular Contact Ball Bearings 7218 ACD/HCP4ATBTB

Super Precision Angular Contact Ball Bearings 7218 ACD/HCP4ATBTB

The 7218 ACD/HCP4ATBTB is a super precision angular contact ball bearing with a 90mm bore and 160mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 59625 lbf and operates smoothly at speeds up to 17000 RPM.

Its 25° contact angle and ceramic balls reduce friction, while the phenolic cage ensures quiet, long-lasting performance. The open design allows for easy lubrication and maintenance.

This bearing comes in a matched set of three, arranged in a TBT configuration, ideal for applications requiring high precision like machine tool spindles or aerospace components. It works well in temperatures from -30°C to 110°C.

Weighing 5.5kg, it’s a robust choice for demanding environments. Compliant with P4A tolerance standards, it offers reliable performance for precision engineering needs.

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Product Parameters

  • Part Number 7218 ACD/HCP4ATBTB
  • 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 3 bearings <>> TBT
  • Number Of Bearings In Matched Set 3
  • Universal Matching Bearing No
  • Preload Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • 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 5.5 kg
Super Precision Angular Contact Ball Bearings 7218 ACD/HCP4ATBTB dimension drawing
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Features

Performance Features of 7218 ACD/HCP4ATBTB Bearing

7218 ACD/HCP4ATBTB Bearing is designed with a 25° contact angle, optimising load distribution for precision applications.

The ceramic balls and chrome steel rings enhance durability, while the phenolic cage ensures smooth operation at high speeds.

With a dynamic radial load capacity of 59,625 lbf, it handles demanding conditions reliably.

Its matched arrangement of three bearings provides stability, making it suitable for high-precision machinery.

Application

Industrial Uses of 7218 ACD/HCP4ATBTB Bearing
7218 ACD/HCP4ATBTB Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The ceramic balls reduce friction, making it suitable for high-speed operations.

In automotive applications, 7218 ACD/HCP4ATBTB Bearing supports performance in gearboxes and differential systems, handling both radial and axial loads efficiently. Its phenolic cage offers durability under varying temperatures.

For medical imaging devices, 7218 ACD/HCP4ATBTB Bearing provides smooth and quiet operation, essential for precise diagnostics. The P4A tolerance class ensures consistent performance in critical environments.

Automation systems benefit from 7218 ACD/HCP4ATBTB Bearing’s light preload, which enhances precision in robotic arms and CNC machines. The matched set arrangement further improves stability in complex setups.

Q&A

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