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Super Precision Angular Contact Ball Bearings 7228 CD/P4ADGC

Super Precision Angular Contact Ball Bearings 7228 CD/P4ADGC

The 7228 CD/P4ADGC is a super precision angular contact ball bearing with a 140mm bore and 250mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 80550 lbf and operates smoothly at speeds up to 11000 RPM.

Its 15° contact angle and moderate preload (Class C) ensure stable performance under angular loads. The open design and phenolic cage make it easy to maintain and long-lasting.

This bearing is part of a matched set of two, suitable for universal mounting in back-to-back, face-to-face, or tandem configurations. Ideal for high-precision applications like machine tool spindles or industrial gearboxes.

Weighing 16.3kg, it’s robust yet manageable for its size. Compliant with P4A tolerance standards, it offers reliable performance in temperatures from -30°C to 110°C.

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Product Parameters

  • Part Number 7228 CD/P4ADGC
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 140 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 250 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 84 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 30.162 mm
  • Ball Qty 18
  • 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 Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 80550 lbf
  • Static Radial Load 108000 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 11000 rpm
  • Weight 16.3 kg
Super Precision Angular Contact Ball Bearings 7228 CD/P4ADGC dimension drawing
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Features

Performance Features of 7228 CD/P4ADGC Bearing

7228 CD/P4ADGC Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and phenolic cage ensure durability and smooth operation under high radial loads.

The bearing’s dynamic radial load capacity of 80,550 lbf makes it suitable for demanding industrial environments.
With a maximum speed of 11,000 rpm, it maintains precision and efficiency in high-speed applications.

7228 CD/P4ADGC Bearing operates in temperatures from -30°C to 110°C, ensuring reliability in varied conditions.
Its universal matching design allows flexible arrangement options, including back-to-back and face-to-face configurations.

The P4A tolerance class guarantees high precision, making it ideal for applications requiring tight tolerances.
Pre-lubricated for ease of use, it reduces initial setup time and maintenance requirements.

Application

Industrial Uses of 7228 CD/P4ADGC Bearing
This bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate alignment under radial and axial loads. The phenolic cage reduces friction, making it suitable for high-speed operations.

Where Is 7228 CD/P4ADGC Bearing Used?
You’ll find it in automotive transmissions, where its moderate preload and universal matching enhance performance. The chrome steel construction also handles the demanding conditions of heavy-duty vehicles.

Built for Heavy-Duty Use: 7228 CD/P4ADGC Bearing
In robotics, this bearing supports articulated arms, providing smooth movement and durability. Its P4A tolerance class ensures consistent performance in automated systems.

Medical vs Industrial: Where 7228 CD/P4ADGC Bearing Excels
While it’s reliable in industrial pumps, its precision also suits medical imaging devices. The open design allows for easy lubrication, extending its lifespan in both fields.

Perfect Fit for Automation: 7228 CD/P4ADGC Bearing
In 3D printers, this bearing’s high-speed capability and low friction are ideal for precise movements. The matched set configuration further improves stability in repetitive tasks.

Q&A

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