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Super Precision Angular Contact Ball Bearings 7021 ACD/P4ADGB

Super Precision Angular Contact Ball Bearings 7021 ACD/P4ADGB

The 7021 ACD/P4ADGB 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 33,300 lbf and operates smoothly at speeds up to 16,000 RPM.

Its 25° 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 is lubricated for easy maintenance and works in temperatures from -30°C to 110°C. Perfect for precision machinery like spindles or CNC equipment where accuracy and reliability are key.

Weighing 3.18kg, it comes in a matched set of two bearings, offering excellent load distribution. Compliant with P4A tolerance class for top-tier performance.

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Product Parameters

  • Part Number 7021 ACD/P4ADGB
  • 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 52 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 2
  • 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 33300 lbf
  • Static Radial Load 41850 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16000 rpm
  • Weight 3.18 kg
Super Precision Angular Contact Ball Bearings 7021 ACD/P4ADGB dimension drawing
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Features

Performance Features of 7021 ACD/P4ADGB Bearing

7021 ACD/P4ADGB Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls provide strong resistance to dynamic radial loads up to 33300 lbf.

The phenolic cage ensures smooth operation at high speeds, reaching up to 16,000 rpm.
Universal matching allows flexible arrangements like back-to-back or face-to-face configurations.

With a P4A tolerance class, 7021 ACD/P4ADGB Bearing delivers precision performance in demanding conditions.
Its light preload (Class B) reduces friction while maintaining stability.

The open design simplifies lubrication, extending service life in temperatures from -30°C to 110°C.
Weighing 3.18 kg, it balances durability and efficiency for industrial applications.

Application

Key Fields for 7021 ACD/P4ADGB Bearing
The 7021 ACD/P4ADGB Bearing is widely used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. Its universal matching feature allows for flexible arrangements in complex setups.

In robotics, 7021 ACD/P4ADGB Bearing provides smooth motion control for articulated arms, thanks to its light preload and phenolic cage. The high-speed capability makes it suitable for automated production lines.

For aerospace applications, 7021 ACD/P4ADGB Bearing handles radial and axial loads in avionics systems. The P4A tolerance class ensures consistent performance under demanding conditions.

Medical imaging devices benefit from 7021 ACD/P4ADGB Bearing’s low friction and precise movement. The chrome steel construction offers durability in sterile environments.

In electric vehicle motors, 7021 ACD/P4ADGB Bearing supports high-speed rotation with minimal vibration. The metric dimensions make it compatible with various European and Asian designs.

Q&A

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