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Super Precision Angular Contact Ball Bearings 7021 CD/P4ADGB

Super Precision Angular Contact Ball Bearings 7021 CD/P4ADGB

The 7021 CD/P4ADGB is a super precision angular contact ball bearing with a 105mm bore and 160mm outer diameter, crafted from high-quality chrome steel. Its 15° contact angle and open design ensure smooth operation under radial loads up to 35100 lbf.

This bearing is lubricated for reduced friction and can handle speeds up to 16000 RPM. The phenolic cage adds durability while keeping the weight manageable at 3.18kg.

Its universal matching feature allows flexible arrangements like back-to-back or face-to-face, making it versatile for various setups. The P4A tolerance class ensures high precision in demanding applications.

Ideal for machine tools or high-speed spindles, it performs reliably in temperatures from -30°C to 110°C. Compatible with SKF bearings, it’s a practical choice for replacements or upgrades.

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Product Parameters

  • Part Number 7021 CD/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 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 Light / Class B
  • 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
  • Price（$） 652.428
Super Precision Angular Contact Ball Bearings 7021 CD/P4ADGB dimension drawing
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Features

Performance Features of 7021 CD/P4ADGB Bearing

7021 CD/P4ADGB Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and noise.

The bearing’s dynamic radial load capacity of 35100 lbf makes it suitable for high-performance machinery.
With a maximum speed of 16,000 rpm, it delivers reliable operation in demanding conditions.

7021 CD/P4ADGB Bearing is available in matched sets, offering flexibility for back-to-back or face-to-face arrangements.
Its precision P4A tolerance class ensures consistent performance in critical applications.

Application

Super Precision Angular Contact Ball Bearings 7021 CD/P4ADGB are commonly used in high-speed machine tools, where their 15° contact angle ensures accurate radial and axial load distribution. The universal matching design allows flexible arrangements like back-to-back or face-to-face setups.

In robotics, 7021 CD/P4ADGB Bearings provide smooth motion control for articulated arms, thanks to their phenolic cage reducing friction at high RPMs. Their P4A tolerance class makes them suitable for precision automation tasks.

For aerospace applications, these bearings handle combined loads in aircraft components, with their chrome steel construction offering durability. The light preload ensures consistent performance across temperature variations from -30°C to 110°C.

Medical imaging systems benefit from 7021 CD/P4ADGB Bearings’ low vibration, critical for maintaining scan clarity. The open seal design simplifies relubrication in maintenance-heavy environments.

In electric vehicle drivetrains, these bearings support efficient power transfer with minimal energy loss. Their metric sizing ensures compatibility with European and Asian motor designs.

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