Super Precision Angular Contact Ball Bearings 7028 CD/P4ADBC

Super Precision Angular Contact Ball Bearings 7028 CD/P4ADBC

The 7028 CD/P4ADBC is a super precision angular contact ball bearing, measuring 140mm by 210mm by 66mm, crafted from durable chrome steel. It features a 15° contact angle and comes in a matched set of two bearings for balanced performance.

With a dynamic radial load capacity of 55575 lbf, it handles high-speed operations up to 6300 RPM. The phenolic cage ensures smooth rotation, while the open design allows for easy lubrication.

This bearing is ideal for precision applications like machine tool spindles or high-performance gearboxes. Its P4A tolerance class guarantees accuracy, and it operates smoothly in temperatures from -30°C to 110°C.

Weighing 6.84kg, it’s robust yet manageable for its size. Interchangeable with SKF bearings, it’s a reliable choice for replacements or upgrades in demanding environments.

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Product Parameters

  • Part Number 7028 CD/P4ADBC
  • 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 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 2 bearings <> DB
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 55575 lbf
  • Static Radial Load 75375 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 6300 rpm
  • Weight 6.84 kg

Features

Why Choose 7028 CD/P4ADBC Bearing for Precision Tasks?

7028 CD/P4ADBC Bearing features a 15° contact angle, optimised for high-precision angular contact applications.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction for smoother operation.

With a dynamic radial load capacity of 55575 lbf, it handles demanding conditions reliably.
The P4A tolerance class guarantees consistent performance in precision machinery.

The matched arrangement of two bearings (DB) enhances stability under moderate preload.
Its maximum speed of 6,300 rpm makes it suitable for high-speed applications.

The open design allows easy lubrication, extending service life.
Operating between -30°C to 110°C, it performs well in varied temperatures.

Application

Industrial Uses of 7028 CD/P4ADBC Bearing
7028 CD/P4ADBC Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The moderate preload and P4A tolerance class make it suitable for applications demanding tight control over radial and axial loads.

In aerospace components, 7028 CD/P4ADBC Bearing provides reliable performance in gearboxes and rotor systems. Its chrome steel construction and phenolic cage handle high speeds and temperatures typical in aviation environments.

For automation systems, 7028 CD/P4ADBC Bearing supports robotic arms and CNC machinery, offering smooth motion and long service life. The matched bearing arrangement enhances stability in dynamic load conditions.

Medical imaging devices benefit from 7028 CD/P4ADBC Bearing’s precision and low vibration. Its consistent performance is crucial for maintaining accuracy in diagnostic equipment like MRI scanners.

In energy sector applications, 7028 CD/P4ADBC Bearing is found in wind turbine gearboxes, where its durability and load capacity ensure reliable operation. The lubricated design reduces maintenance needs in harsh outdoor conditions.

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