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Super Precision Angular Contact Ball Bearings 7228 CD/HCP4A

Super Precision Angular Contact Ball Bearings 7228 CD/HCP4A

The 7228 CD/HCP4A is a super precision angular contact ball bearing with a 140mm bore and 250mm outer diameter, designed for high-performance applications. Its 15° contact angle and ceramic balls ensure smooth operation under heavy radial loads up to 49725 lbf.

The open design and phenolic cage allow for easy lubrication and long service life, even at speeds up to 10000 RPM. The bearing maintains stability in temperatures ranging from -30°C to 110°C.

With a P4 tolerance class, it offers exceptional accuracy for demanding machinery like CNC spindles or high-speed turbines. The chrome steel rings and ceramic balls reduce friction, enhancing efficiency.

Weighing 6.92kg, this bearing is robust yet precise, making it ideal for industrial equipment where reliability and performance are critical. It’s interchangeable with SKF models for easy replacement.

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Product Parameters

  • Part Number 7228 CD/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 140 mm
  • Bore Dia Tolerance -0.01mm to 0
  • Outer Dia 250 mm
  • Outer Dia Tolerance -0.011mm to 0
  • Width 42 mm
  • Width Tolerance -0.24mm to 0
  • Ball Dia 30.162 mm
  • Ball Qty 18
  • Contact Angle 15°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Available
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 49725 lbf
  • Static Radial Load 54000 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 10000 rpm
  • Weight 6.92 kg
  • Price（$） 1952.46
Super Precision Angular Contact Ball Bearings 7228 CD/HCP4A dimension drawing
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Features

Performance Features of 7228 CD/HCP4A Bearing

7228 CD/HCP4A Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and ceramic balls enhance durability while reducing friction.

The phenolic cage ensures smooth operation, even at high speeds up to 10,000 rpm.
With a dynamic radial load capacity of 49,725 lbf, it handles demanding tasks with ease.

7228 CD/HCP4A Bearing operates efficiently within a temperature range of -30° to 110°C.
Its precision P4 tolerance class guarantees consistent performance in high-accuracy applications.

The open design allows for easy lubrication, maintaining optimal performance over time.
Weighing 6.92 kg, it balances strength and practicality for industrial use.

Application

Industrial Uses of 7228 CD/HCP4A Bearing
7228 CD/HCP4A Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The ceramic balls reduce friction, making it suitable for high-speed operations.

Where Is 7228 CD/HCP4A Bearing Used?
In automotive applications, 7228 CD/HCP4A Bearing supports components like wheel hubs and transmissions, thanks to its robust radial load capacity. The phenolic cage adds durability in high-temperature environments.

Perfect Fit for Automation: 7228 CD/HCP4A Bearing
7228 CD/HCP4A Bearing excels in robotic arms and automated systems, where its preload capability enhances stability. The open seal design allows for easy lubrication, extending service life.

Medical vs Industrial: Where 7228 CD/HCP4A Bearing Excels
For medical imaging devices, 7228 CD/HCP4A Bearing offers quiet and smooth operation, crucial for precision diagnostics. In industrial settings, its high dynamic load rating handles heavy machinery demands.

Essential Roles of 7228 CD/HCP4A Bearing
7228 CD/HCP4A Bearing is ideal for aerospace applications, where its P4 tolerance class ensures reliability. The matched arrangement option provides consistent performance in paired installations.

Q&A

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