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Super Precision Angular Contact Ball Bearings 7021 ACD/P4ATGB

Super Precision Angular Contact Ball Bearings 7021 ACD/P4ATGB

The 7021 ACD/P4ATGB is a super precision angular contact ball bearing with a 105mm bore and 160mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 44775 lbf and operates smoothly at speeds up to 16000 RPM.

With a 25° contact angle and universal matching, it offers excellent stability for paired arrangements. The phenolic cage ensures durability while keeping the bearing lightweight.

Designed for precision applications, it works well in temperatures from -30°C to 110°C. Ideal for machine tools or high-speed spindles where accuracy is crucial.

Weighing 4.78kg, it comes in a matched set of three, suitable for back-to-back, face-to-face, or tandem configurations. Compliant with P4A tolerance standards for reliable performance.

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Product Parameters

  • Part Number 7021 ACD/P4ATGB
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 105 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 160 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 78 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 17.462 mm
  • Ball Qty 21
  • 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 44775 lbf
  • Static Radial Load 61875 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16000 rpm
  • Weight 4.78 kg
Super Precision Angular Contact Ball Bearings 7021 ACD/P4ATGB dimension drawing
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Features

Performance Features of 7021 ACD/P4ATGB Bearing

7021 ACD/P4ATGB Bearing is crafted with chrome steel rings and balls, ensuring durability and high load capacity.
Its dynamic radial load rating of 44775 lbf makes it suitable for demanding applications.

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

7021 ACD/P4ATGB Bearing operates efficiently in temperatures ranging from -30°C to 110°C.
Its universal matching design allows for flexible arrangement options like back-to-back or face-to-face.

The light preload (Class B) ensures precise operation, ideal for super precision tasks.
Its open seal type facilitates easy lubrication, maintaining optimal performance over time.

Application

Industrial Uses of 7021 ACD/P4ATGB Bearing
7021 ACD/P4ATGB Bearing is commonly used in high-precision machine tools, where its 25° contact angle ensures accurate radial and axial load handling. The universal matching design allows for flexible arrangements, making it suitable for complex setups.

In automotive applications, 7021 ACD/P4ATGB Bearing supports high-speed components like turbochargers and transmission systems. Its phenolic cage provides stability and reduces friction, enhancing performance under demanding conditions.

For robotics and automation, 7021 ACD/P4ATGB Bearing excels in mechanical arms and CNC machines, thanks to its P4A tolerance class. The chrome steel construction ensures durability and consistent operation in repetitive tasks.

Medical imaging devices benefit from 7021 ACD/P4ATGB Bearing’s precision and smooth rotation. The lubricated design minimises maintenance, making it ideal for critical healthcare equipment.

In aerospace systems, 7021 ACD/P4ATGB Bearing handles high-speed rotations with ease. Its lightweight phenolic cage and matched set configuration ensure reliability in demanding flight conditions.

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