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Super Precision Angular Contact Ball Bearings 7221 ACDGA/P4A

Super Precision Angular Contact Ball Bearings 7221 ACDGA/P4A

The 7221 ACDGA/P4A is a super precision angular contact ball bearing with a 105mm bore and 190mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 36675 lbf and operates smoothly at speeds up to 16000 RPM.

With a 25° contact angle and extra-light preload, it offers excellent accuracy for demanding applications. The phenolic cage ensures durability and reduces friction during high-speed rotation.

This bearing is suitable for temperatures from -30°C to 110°C and comes pre-lubricated for easy installation. Its P4A tolerance class guarantees consistent performance in precision machinery.

Ideal for spindle assemblies or machine tools, it can be paired in back-to-back, face-to-face, or tandem arrangements. Weighing 3.87kg, it’s a robust choice for industrial settings.

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Product Parameters

  • Part Number 7221 ACDGA/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 105 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 190 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 36 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 26.988 mm
  • Ball Qty 15
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 36675 lbf
  • Static Radial Load 32850 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16000 rpm
  • Weight 3.87 kg
Super Precision Angular Contact Ball Bearings 7221 ACDGA/P4A dimension drawing
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Features

Performance Features of 7221 ACDGA/P4A Bearing

7221 ACDGA/P4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure high strength and durability under dynamic radial loads up to 36675 lbf.

The phenolic cage in 7221 ACDGA/P4A Bearing reduces friction and allows smooth operation at speeds up to 16,000 rpm.
Precision P4A tolerance ensures reliable performance in demanding conditions.

7221 ACDGA/P4A Bearing operates efficiently in temperatures from -30°C to 110°C.
Its universal matching capability allows flexible arrangement in back-to-back, face-to-face, or tandem configurations.

The open design of 7221 ACDGA/P4A Bearing simplifies maintenance while ensuring consistent lubrication.
With a weight of 3.87 kg, it balances robustness and practicality for industrial use.

Application

Industrial Uses of 7221 ACDGA/P4A Bearing
The 7221 ACDGA/P4A Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. Its phenolic cage reduces friction, making it suitable for continuous operation in demanding environments.

What Makes 7221 ACDGA/P4A Bearing a Preferred Choice?
In automotive applications, 7221 ACDGA/P4A Bearing supports high-speed components like turbochargers, thanks to its extra-light preload and chrome steel construction. The open design allows for efficient lubrication, extending service life.

Perfect Fit for Automation: 7221 ACDGA/P4A Bearing
This bearing excels in robotic arms and CNC machines, where its P4A tolerance class guarantees minimal vibration. The 25° contact angle provides optimal load distribution for smooth, precise movements.

Medical vs Industrial: Where 7221 ACDGA/P4A Bearing Excels
While 7221 ACDGA/P4A Bearing is ideal for industrial gearboxes, it also meets the precision needs of medical imaging devices. Its temperature stability ensures reliable performance in both settings.

Q&A

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