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Super Precision Angular Contact Ball Bearings 7208 CDGA/HCP4A

Super Precision Angular Contact Ball Bearings 7208 CDGA/HCP4A

The 7208 CDGA/HCP4A is a super precision angular contact ball bearing with a 40mm bore and 80mm outer diameter, crafted from high-quality chrome steel. It features a 15° contact angle and ceramic balls for smooth operation.

This bearing handles dynamic radial loads up to 7605 lbf and spins at speeds up to 41,000 RPM. Its phenolic cage ensures durability, while the extra light preload (Class A) enhances precision.

The open design allows for easy lubrication, and it works in temperatures from -30°C to 110°C. With a P4A tolerance class, it offers exceptional accuracy.

Ideal for high-speed applications like machine tool spindles or precision instruments. Weighing 0.33kg, it’s part of a matched set of four bearings, suitable for back-to-back, face-to-face, or tandem arrangements.

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Product Parameters

  • Part Number 7208 CDGA/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 40 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 80 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 18 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 11.112 mm
  • Ball Qty 14
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 4
  • 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 7605 lbf
  • Static Radial Load 5400 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 0.33 kg
Super Precision Angular Contact Ball Bearings 7208 CDGA/HCP4A dimension drawing
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Features

How Does 7208 CDGA/HCP4A Bearing Reduce Friction?

7208 CDGA/HCP4A Bearing features ceramic balls and a phenolic cage, significantly reducing friction during operation.
The 15° contact angle ensures smooth angular contact, enhancing precision in high-speed applications.

With a maximum speed of 41,000 rpm, it maintains efficiency without compromising durability.
The chrome steel rings provide strength, while the open design allows for easy lubrication.

Its dynamic radial load capacity of 7605 lbf makes it suitable for demanding tasks.
The P4A tolerance class ensures consistent performance in precision machinery.

Application

How Does 7208 CDGA/HCP4A Bearing Improve Performance?
7208 CDGA/HCP4A Bearing excels in high-speed machine tools, where its ceramic balls reduce friction and heat buildup. The 15° contact angle ensures smooth operation under combined radial and axial loads.

In robotics, 7208 CDGA/HCP4A Bearing provides precise motion control for articulated arms, thanks to its P4A tolerance class. The phenolic cage offers quiet performance, ideal for sensitive automated environments.

For aerospace applications, 7208 CDGA/HCP4A Bearing’s lightweight design and high-speed capability make it suitable for avionics systems. Its temperature range handles both cold altitudes and engine compartment heat.

Medical imaging devices benefit from 7208 CDGA/HCP4A Bearing’s consistent rotation and minimal vibration. The open design allows for easy lubrication, extending service life in critical healthcare equipment.

In electric vehicle motors, 7208 CDGA/HCP4A Bearing supports high RPM demands while maintaining energy efficiency. The ceramic balls resist electrical arcing, preventing premature wear in hybrid systems.

Q&A

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