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Super Precision Angular Contact Ball Bearings 7221 CD/P4ADGA

Super Precision Angular Contact Ball Bearings 7221 CD/P4ADGA

The 7221 CD/P4ADGA 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 62100 lbf and operates smoothly at speeds up to 16000 RPM.

Its 15° contact angle and universal matching design allow flexible arrangements like back-to-back or face-to-face, ideal for complex setups. The phenolic cage ensures durability and reduces friction during high-speed rotations.

This bearing comes pre-lubricated and works in temperatures from -30°C to 110°C. Weighing 7.74kg, it’s robust yet manageable for its size, meeting P4A tolerance standards for precision applications.

Perfect for machine tools or high-precision spindles where accuracy and reliability are key. The matched set of two bearings offers versatility for various mounting configurations.

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Product Parameters

  • Part Number 7221 CD/P4ADGA
  • 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 72 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 26.988 mm
  • Ball Qty 15
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Universal matching
  • 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 62100 lbf
  • Static Radial Load 68625 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16000 rpm
  • Weight 7.74 kg
Super Precision Angular Contact Ball Bearings 7221 CD/P4ADGA dimension drawing
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Features

Performance Features of 7221 CD/P4ADGA Bearing

7221 CD/P4ADGA Bearing is crafted with chrome steel rings and balls, offering high precision and durability.
Its 15° contact angle ensures optimal performance in angular contact load applications.

The phenolic cage maintains ball alignment, reducing friction and enhancing speed capabilities.
With a maximum speed of 16,000 rpm, it delivers smooth operation in high-speed settings.

7221 CD/P4ADGA Bearing’s universal matching design allows flexible arrangement options.
Its extra light preload (Class A) ensures minimal friction and extended service life.

The dynamic radial load capacity of 62,100 lbf makes it suitable for demanding tasks.
Operating between -30°C to 110°C, it performs reliably in varied temperature conditions.

Application

Key Fields for 7221 CD/P4ADGA Bearing
In high-speed machine tools, 7221 CD/P4ADGA Bearing excels due to its precise angular contact design, ensuring smooth rotation under heavy radial loads. The phenolic cage reduces friction, making it ideal for continuous operation.

Where Is 7221 CD/P4ADGA Bearing Used?
You’ll often find 7221 CD/P4ADGA Bearing in automotive transmissions, where its universal matching feature simplifies installation. The extra-light preload enhances performance in high-speed scenarios.

Optimized for Performance: 7221 CD/P4ADGA Bearing
For robotics, 7221 CD/P4ADGA Bearing offers reliable angular contact support, crucial for precise arm movements. Its chrome steel construction ensures durability in demanding environments.

Automotive vs Aerospace: Applications of 7221 CD/P4ADGA Bearing
In automotive systems, 7221 CD/P4ADGA Bearing handles high-speed loads in gearboxes, while aerospace applications benefit from its precision in actuator mechanisms. The P4A tolerance class guarantees consistent performance.

Q&A

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