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Super Precision Angular Contact Ball Bearings 7028 CD/HCP4ADGA

Super Precision Angular Contact Ball Bearings 7028 CD/HCP4ADGA

The 7028 CD/HCP4ADGA is a super precision angular contact ball bearing with a 140mm bore and 210mm outer diameter, designed for high-performance applications. Its 15° contact angle and ceramic balls ensure smooth operation under heavy loads.

This bearing comes in a matched set of two, allowing universal mounting in back-to-back, face-to-face, or tandem configurations. The phenolic cage and chrome steel rings provide durability and stability.

With a dynamic radial load capacity of 55575 lbf and a max speed of 6300 RPM, it handles demanding conditions effortlessly. The extra light preload (Class A) ensures precise movement.

Ideal for machine tools or high-speed spindles, it operates in temperatures from -30°C to 110°C. Weighing 5.65kg, it’s robust yet manageable for its size. Compliant with P4A tolerance standards for exceptional accuracy.

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Product Parameters

  • Part Number 7028 CD/HCP4ADGA
  • 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 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 Ceramic
  • 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 5.65 kg
Super Precision Angular Contact Ball Bearings 7028 CD/HCP4ADGA dimension drawing
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Features

Performance Features of 7028 CD/HCP4ADGA Bearing

7028 CD/HCP4ADGA Bearing is designed with a 15° contact angle, ideal for handling combined radial and axial loads.

Its chrome steel rings and ceramic balls ensure high precision and durability in demanding applications.

The phenolic cage maintains ball alignment, reducing friction and enhancing performance.

With a dynamic radial load capacity of 55575 lbf, it excels in high-load scenarios.

How Is 7028 CD/HCP4ADGA Bearing Engineered for Reliability?

7028 CD/HCP4ADGA Bearing features universal matching, allowing flexible arrangements like back-to-back or face-to-face.

The extra light preload (Class A) ensures smooth operation and minimal wear over time.

Its P4A tolerance class guarantees exceptional precision for critical applications.

The ceramic balls and chrome steel construction provide excellent resistance to wear and heat.

What Makes 7028 CD/HCP4ADGA Bearing Suitable for High-Temperature Applications?

7028 CD/HCP4ADGA Bearing operates reliably in temperatures ranging from -30°C to 110°C.

The ceramic balls reduce heat generation, maintaining performance under high-speed conditions.

Its phenolic cage is resistant to thermal deformation, ensuring stability.

The open seal design allows for effective lubrication, further enhancing thermal management.

Built for Reliability: 7028 CD/HCP4ADGA Bearing

7028 CD/HCP4ADGA Bearing’s chrome steel rings and ceramic balls offer superior strength and longevity.

Its dynamic radial load capacity of 55575 lbf makes it suitable for heavy-duty applications.

The universal matching feature provides versatility in installation configurations.

With a maximum speed of 6,300 rpm, it delivers consistent performance in high-speed environments.

Application

Practical Applications of 7028 CD/HCP4ADGA Bearing
The 7028 CD/HCP4ADGA Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. Its ceramic balls reduce friction, making it suitable for high-speed operations.

In aerospace applications, 7028 CD/HCP4ADGA Bearing supports critical components like turbine shafts, thanks to its extra-light preload and universal matching. The phenolic cage adds durability in demanding environments.

For robotics, 7028 CD/HCP4ADGA Bearing excels in articulated arms, providing smooth movement under radial loads. Its P4A tolerance class guarantees consistent performance in automated systems.

Medical imaging devices benefit from 7028 CD/HCP4ADGA Bearing’s precision, ensuring stable operation in MRI machines. The chrome steel rings offer long-lasting reliability in sensitive equipment.

In electric vehicle motors, 7028 CD/HCP4ADGA Bearing handles high rotational speeds with minimal heat generation. Its lubricated design further enhances efficiency in continuous use scenarios.

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