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Super Precision Angular Contact Ball Bearings 7021 ACDGC/P4AL

Super Precision Angular Contact Ball Bearings 7021 ACDGC/P4AL

The 7021 ACDGC/P4AL 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 20340 lbf and operates smoothly at speeds up to 16000 RPM.

With a 25° contact angle and moderate preload, it offers excellent stability for high-precision applications. The open design and phenolic cage ensure reliable performance under demanding conditions.

This bearing is part of a matched set of three, suitable for back-to-back, face-to-face, or tandem arrangements. Ideal for machine tools or spindle systems where accuracy is crucial.

Weighing 1.59kg, it’s robust yet manageable for its size. Compliant with P4A tolerance standards, it’s interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 7021 ACDGC/P4AL
  • 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 26 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 Available
  • Number Of Bearings In Matched Set 3
  • 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 20340 lbf
  • Static Radial Load 20925 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16000 rpm
  • Weight 1.59 kg
Super Precision Angular Contact Ball Bearings 7021 ACDGC/P4AL dimension drawing
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Features

How Does 7021 ACDGC/P4AL Bearing Ensure Precision in High-Speed Applications?

7021 ACDGC/P4AL Bearing features a 25° contact angle, optimising load distribution for high-speed operations.
Its chrome steel construction enhances durability while maintaining precision under dynamic radial loads up to 20,340 lbf.

The phenolic cage minimises friction, allowing smooth rotation at speeds up to 16,000 rpm.
With a P4A tolerance class, it delivers consistent performance in demanding angular contact applications.

This bearing is available in matched sets, supporting back-to-back or face-to-face arrangements for versatile use.
Its open design simplifies lubrication, ensuring long-term reliability in temperatures from -30°C to 110°C.

Application

Industrial Uses of 7021 ACDGC/P4AL Bearing
7021 ACDGC/P4AL Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The moderate preload helps maintain stability during heavy cutting operations.

Where Is 7021 ACDGC/P4AL Bearing Used?
You’ll find 7021 ACDGC/P4AL Bearing in automotive transmissions, where it handles both radial and axial loads efficiently. Its phenolic cage reduces friction, making it ideal for high-speed applications.

Built for Heavy-Duty Use: 7021 ACDGC/P4AL Bearing
7021 ACDGC/P4AL Bearing excels in robotics, particularly in articulated arms requiring precise movement. The chrome steel construction offers durability under continuous operation.

Automotive vs Aerospace: Applications of 7021 ACDGC/P4AL Bearing
In automotive systems, 7021 ACDGC/P4AL Bearing supports gearbox components, while in aerospace, it’s used in flight control mechanisms. Its P4A tolerance ensures reliability in both fields.

Perfect Fit for Automation: 7021 ACDGC/P4AL Bearing
7021 ACDGC/P4AL Bearing is a great choice for automated production lines, where its matched arrangement reduces downtime. The open design allows for easy lubrication and maintenance.

Q&A

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