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Super Precision Angular Contact Ball Bearings 7028 CD/HCP4ADBC

Super Precision Angular Contact Ball Bearings 7028 CD/HCP4ADBC

The 7028 CD/HCP4ADBC is a super precision angular contact ball bearing with a 140mm bore and 210mm outer diameter, measuring 66mm in width. Made from chrome steel and ceramic balls, it offers high durability and smooth operation.

This bearing handles radial loads up to 55575 lbf and operates at speeds up to 6300 RPM. Its 15° contact angle and moderate preload ensure stable performance under angular loads.

The open design and phenolic cage make maintenance straightforward while maintaining precision. It works in temperatures from -30°C to 110°C, suitable for demanding environments.

Ideal for high-precision applications like machine tool spindles or industrial pumps. The matched pair setup (2 bearings) enhances load distribution and alignment. Weighing 5.65kg, it’s robust yet manageable for its size.

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Product Parameters

  • Part Number 7028 CD/HCP4ADBC
  • 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 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/HCP4ADBC dimension drawing
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Features

Performance Features of 7028 CD/HCP4ADBC Bearing

7028 CD/HCP4ADBC Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and ceramic balls enhance durability and reduce friction during operation.

The phenolic cage ensures smooth performance, even at high speeds up to 6,300 rpm.
With a dynamic radial load capacity of 55,575 lbf, it handles demanding conditions reliably.

Precision-matched in a DB arrangement, 7028 CD/HCP4ADBC Bearing offers consistent performance.
Its moderate preload (Class C) ensures stability without compromising efficiency.

The open design allows for easy lubrication, maintaining optimal performance.
Operating between -30°C to 110°C, it adapts to various environmental conditions.

Application

Common Applications of 7028 CD/HCP4ADBC Bearing
In high-precision machine tools, 7028 CD/HCP4ADBC Bearing excels with its angular contact design, ensuring accurate spindle rotation. The ceramic balls reduce friction, making it ideal for demanding machining tasks.

Where Is 7028 CD/HCP4ADBC Bearing Used?
You’ll often find 7028 CD/HCP4ADBC Bearing in aerospace applications, where its moderate preload and P4A tolerance class support reliable performance. Its matched arrangement also helps maintain stability in critical flight systems.

Built for Heavy-Duty Use: 7028 CD/HCP4ADBC Bearing
This bearing handles heavy radial loads in industrial gearboxes, thanks to its chrome steel rings and phenolic cage. The lubricated design ensures smooth operation even under continuous use.

Automotive vs Aerospace: Applications of 7028 CD/HCP4ADBC Bearing
In automotive systems, 7028 CD/HCP4ADBC Bearing supports high-speed components like turbochargers. For aerospace, its precision and durability make it a go-to for engine and control systems.

Perfect Fit for Automation: 7028 CD/HCP4ADBC Bearing
Robotic arms benefit from 7028 CD/HCP4ADBC Bearing’s angular contact and ceramic balls, which enhance precision and longevity. The open seal design allows for easy maintenance in automated setups.

Q&A

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