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Super Precision Angular Contact Ball Bearings 7028 ACDGC/P4A

Super Precision Angular Contact Ball Bearings 7028 ACDGC/P4A

The 7028 ACDGC/P4A is a super precision angular contact ball bearing with a 140mm bore and 210mm outer diameter, designed for high accuracy applications. Its 25° contact angle efficiently handles combined radial and thrust loads, with dynamic radial load capacity up to 32850 lbf.

Made from durable chrome steel with a phenolic cage, it offers smooth operation at speeds up to 6300 RPM. The open design allows for easy lubrication, while the P4A tolerance class ensures exceptional running accuracy.

This bearing is suitable for universal matching in back-to-back, face-to-face, or tandem arrangements. Ideal for precision machinery like spindles or CNC equipment where tight tolerances are crucial.

Weighing 3.42kg, it operates reliably in temperatures from -30°C to 110°C. Interchangeable with SKF bearings, it provides a trustworthy alternative for maintenance or upgrades.

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Product Parameters

  • Part Number 7028 ACDGC/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 140 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 210 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 33 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 22.225 mm
  • Ball Qty 22
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • 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 32850 lbf
  • Static Radial Load 35100 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 6300 rpm
  • Weight 3.42 kg
Super Precision Angular Contact Ball Bearings 7028 ACDGC/P4A dimension drawing
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Features

How Does 7028 ACDGC/P4A Bearing Ensure Precision in Angular Contact Applications?

7028 ACDGC/P4A Bearing features a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls enhance durability, while the phenolic cage reduces friction and noise.

With a dynamic radial load capacity of 32,850 lbf, 7028 ACDGC/P4A Bearing handles demanding conditions reliably.
The P4A tolerance class ensures high precision, making it suitable for critical applications.

7028 ACDGC/P4A Bearing operates smoothly at speeds up to 6,300 rpm, balancing performance and longevity.
Its universal matching capability allows flexible configurations like back-to-back or face-to-face arrangements.

Application

Industrial Uses of 7028 ACDGC/P4A Bearing
The 7028 ACDGC/P4A Bearing is commonly used in high-precision machine tools, where its angular contact design handles both radial and axial loads efficiently. The moderate preload ensures stability during high-speed operations, making it suitable for spindle applications.

In automotive systems, 7028 ACDGC/P4A Bearing supports components like wheel hubs and transmissions, where its chrome steel construction offers durability. The P4A tolerance class guarantees precise alignment, reducing wear in demanding conditions.

For robotics, 7028 ACDGC/P4A Bearing’s phenolic cage provides smooth operation in articulated arms and joints. Its universal matching capability allows for flexible configurations, enhancing performance in automated systems.

Medical imaging devices benefit from 7028 ACDGC/P4A Bearing’s low friction and high load capacity. The open design facilitates easy lubrication, ensuring reliable operation in critical healthcare equipment.

In aerospace applications, 7028 ACDGC/P4A Bearing’s temperature resilience and precision make it ideal for flight control systems. The tandem arrangement option further optimises space and load distribution in compact designs.

Q&A

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