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Super Precision Angular Contact Ball Bearings 7221 ACD/P4A

Super Precision Angular Contact Ball Bearings 7221 ACD/P4A

The 7221 ACD/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 10000 RPM.

With a 25° contact angle and phenolic cage, it offers excellent stability and low friction. The open design allows for easy lubrication, ensuring long-lasting performance in temperatures from -30°C to 110°C.

This bearing is interchangeable with SKF models, making it a versatile choice for replacements. Ideal for high-precision applications like machine tools or spindle drives where accuracy is crucial.

Weighing 3.87kg, it’s robust yet manageable for its size. Compliant with P4 tolerance standards, it ensures reliable performance in demanding conditions.

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Product Parameters

  • Part Number 7221 ACD/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 105 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 190 mm
  • Outer Dia Tolerance -0.011mm to 0
  • Width 36 mm
  • Width Tolerance -0.24mm to 0
  • Ball Dia 26.988 mm
  • Ball Qty 15
  • Contact Angle 25°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Preload Available
  • 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° to 110 °C
  • Max Speed 10000 rpm
  • Weight 3.87 kg
  • Price（$） 397.413
Super Precision Angular Contact Ball Bearings 7221 ACD/P4A dimension drawing
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Features

Performance Features of 7221 ACD/P4A Bearing

7221 ACD/P4A Bearing is crafted with chrome steel rings and balls, offering high precision in angular contact applications.
Its 25° contact angle ensures efficient load distribution, enhancing performance under radial and axial forces.

The phenolic cage maintains ball alignment, reducing friction and noise during operation.
With a dynamic radial load capacity of 36675 lbf, it handles demanding conditions reliably.

7221 ACD/P4A Bearing operates smoothly at speeds up to 10,000 rpm, thanks to its balanced design.
Its P4 tolerance class guarantees precision, making it suitable for high-accuracy machinery.

The open seal design allows for easy lubrication, ensuring consistent performance over time.
Its temperature range of -30° to 110°C makes it versatile for various industrial environments.

7221 ACD/P4A Bearing’s robust construction ensures long service life with minimal maintenance.
Its chrome steel components resist wear, maintaining performance even under heavy loads.

Application

Industrial Uses of 7221 ACD/P4A Bearing
The 7221 ACD/P4A Bearing is commonly used in high-precision machine tools, where its angular contact design helps manage both radial and axial loads efficiently. Its open seal type allows for easy lubrication, ensuring long service life in demanding conditions.

In automotive applications, 7221 ACD/P4A Bearing is found in gearboxes and wheel hubs, providing smooth operation at high speeds. The phenolic cage material reduces friction, making it a reliable choice for performance vehicles.

For robotics and automation, 7221 ACD/P4A Bearing’s P4 tolerance class ensures precise movement in robotic arms and CNC machines. The chrome steel construction adds durability, even in continuous operation scenarios.

Medical imaging devices benefit from 7221 ACD/P4A Bearing’s low-noise performance and high load capacity. Its temperature range makes it suitable for equipment that requires stable operation in varying environments.

In consumer electronics like high-end printers, 7221 ACD/P4A Bearing’s balanced design helps maintain accuracy during repetitive tasks. The lubricated setup ensures minimal maintenance, ideal for home and office use.

Q&A

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