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Super Precision Angular Contact Ball Bearings 7028 ACD/P4ADGD

Super Precision Angular Contact Ball Bearings 7028 ACD/P4ADGD

The 7028 ACD/P4ADGD is a super precision angular contact ball bearing with a 140mm bore and 210mm outer diameter, crafted from durable chrome steel. It measures 140mm by 210mm by 66mm, offering a robust yet compact design.

This bearing handles heavy radial loads up to 52650 lbf and operates smoothly at speeds up to 6300 RPM. Its 25° contact angle and heavy preload (Class D) ensure stability under demanding conditions.

The open design and phenolic cage make it easy to maintain, while the universal matching allows flexible arrangements like back-to-back or face-to-face. It works well in temperatures from -30°C to 110°C.

Ideal for high-precision applications like machine tools or spindles, this bearing is interchangeable with SKF models. Weighing 6.84kg, it’s a reliable choice for industrial use.

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Product Parameters

  • Part Number 7028 ACD/P4ADGD
  • 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 66 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 Universal matching
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Heavy / Class D
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 52650 lbf
  • Static Radial Load 70875 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 6300 rpm
  • Weight 6.84 kg
Super Precision Angular Contact Ball Bearings 7028 ACD/P4ADGD dimension drawing
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Features

Performance Features of 7028 ACD/P4ADGD Bearing

7028 ACD/P4ADGD Bearing is crafted with a 25° contact angle, ideal for handling combined radial and axial loads.

Its universal matching design allows flexible arrangements like back-to-back or face-to-face, adapting to various applications.

The phenolic cage ensures smooth operation at high speeds, up to 6,300 rpm.

With a dynamic radial load capacity of 52,650 lbf, it delivers reliable performance in precision tasks.

Application

Industrial Uses of 7028 ACD/P4ADGD Bearing
This bearing is commonly used in high-precision machine tools, where its angular contact design handles both radial and axial loads efficiently. The universal matching feature allows for flexible arrangements in complex setups.

In aerospace applications, 7028 ACD/P4ADGD Bearing supports critical components like turbine shafts, thanks to its heavy preload and P4A tolerance class. The phenolic cage ensures smooth operation even at high speeds.

For automation systems, 7028 ACD/P4ADGD Bearing is ideal for robotic arms and CNC machines, where its chrome steel construction offers durability. The open seal design simplifies lubrication and maintenance.

Medical imaging devices benefit from 7028 ACD/P4ADGD Bearing’s precision, ensuring accurate movement in scanners. The temperature range makes it suitable for various clinical environments.

In heavy machinery, this bearing excels in gearboxes and pumps, handling dynamic loads with ease. Its metric sizing ensures compatibility with a wide range of industrial equipment.

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