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Super Precision Angular Contact Ball Bearings 7021 CD/P4ADGC

Super Precision Angular Contact Ball Bearings 7021 CD/P4ADGC

The 7021 CD/P4ADGC is a super precision angular contact ball bearing with a 105mm bore and 160mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 35100 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 setups. The phenolic cage ensures quiet operation and long service life.

This bearing is lubricated for easy maintenance and works in temperatures from -30°C to 110°C. It comes in a matched set of two for balanced performance.

Ideal for high-precision applications like machine tool spindles or aerospace systems where accuracy and reliability are key. Weighing 3.18kg, it’s robust yet manageable for its size.

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Product Parameters

  • Part Number 7021 CD/P4ADGC
  • 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 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 Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 35100 lbf
  • Static Radial Load 43425 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 CD/P4ADGC dimension drawing
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Features

Performance Features of 7021 CD/P4ADGC Bearing

7021 CD/P4ADGC Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.

Its chrome steel rings and balls provide strong resistance to dynamic radial loads up to 35,100 lbf.

The phenolic cage ensures smooth operation at high speeds, reaching up to 16,000 rpm.

With universal matching capability, it supports various configurations like back-to-back or face-to-face arrangements.

Application

Industrial Uses of 7021 CD/P4ADGC Bearing
7021 CD/P4ADGC Bearing is commonly used in high-precision machine tools, where its moderate preload and universal matching design ensure accurate spindle performance. The phenolic cage reduces friction, making it suitable for high-speed operations.

In aerospace applications, 7021 CD/P4ADGC Bearing supports critical components like helicopter rotor systems, thanks to its angular contact design and chrome steel construction. The P4A tolerance class guarantees reliability under demanding conditions.

For automation systems, 7021 CD/P4ADGC Bearing excels in robotic arms and CNC machinery, where its balanced load distribution enhances precision. The open seal type allows for easy lubrication, extending service life in continuous operations.

Medical imaging devices benefit from 7021 CD/P4ADGC Bearing’s smooth rotation and low vibration, essential for clear scan results. Its temperature stability ensures consistent performance in clinical environments.

In electric vehicle drivetrains, 7021 CD/P4ADGC Bearing handles angular loads efficiently, contributing to quieter and more efficient motor operation. The metric sizing ensures compatibility with global automotive standards.

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