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Super Precision Angular Contact Ball Bearings 7021 CD/P4ADGA

Super Precision Angular Contact Ball Bearings 7021 CD/P4ADGA

The 7021 CD/P4ADGA 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 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. The phenolic cage ensures durability while keeping the bearing lightweight.

This bearing is ideal for high-precision applications such as machine tools or spindles, where accuracy is crucial. It performs reliably in temperatures from -30°C to 110°C.

Weighing 3.18kg, it comes as a matched set of two bearings for balanced performance. Compliant with P4A tolerance standards, it’s interchangeable with SKF models for easy replacement.

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Product Parameters

  • Part Number 7021 CD/P4ADGA
  • 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 Extra light / Class A
  • 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/P4ADGA dimension drawing
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Features

Performance Features of 7021 CD/P4ADGA Bearing

7021 CD/P4ADGA Bearing is designed with a 15° contact angle, offering precise angular contact performance.
Its chrome steel rings and balls ensure durability and resistance to wear under heavy radial loads.

The phenolic cage maintains ball alignment, reducing friction and enhancing operational smoothness.
With a dynamic radial load capacity of 35,100 lbf, it handles demanding applications with ease.

7021 CD/P4ADGA Bearing operates efficiently at speeds up to 16,000 rpm, balancing speed and reliability.
Its universal matching design allows flexible arrangement options, including back-to-back and face-to-face configurations.

The extra light preload ensures minimal friction, making it suitable for high-precision tasks.
Its temperature range of -30°C to 110°C ensures performance in varied environmental conditions.

Application

How Does 7021 CD/P4ADGA Bearing Improve Performance?
In industrial settings, 7021 CD/P4ADGA Bearing excels in high-speed spindles and machine tools, where its 15° contact angle ensures precise radial and axial load handling. The universal matching design allows flexible arrangements for varied operational needs.

What Industries Rely on 7021 CD/P4ADGA Bearing?
Automotive manufacturers use 7021 CD/P4ADGA Bearing in performance gearboxes and electric motor systems, benefiting from its extra-light preload and consistent high-speed capability. Its phenolic cage reduces friction, enhancing efficiency.

Built for Heavy-Duty Use: 7021 CD/P4ADGA Bearing
This bearing is a go-to for robotics and automation, particularly in articulated arms and CNC machinery, where its P4A tolerance class guarantees accuracy. The chrome steel construction ensures longevity even in demanding conditions.

Medical vs Industrial: Where 7021 CD/P4ADGA Bearing Excels
While 7021 CD/P4ADGA Bearing supports surgical robots with its smooth operation, it also shines in industrial pumps and compressors. The lubricated design minimises maintenance, making it versatile across sectors.

Q&A

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