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Super Precision Angular Contact Ball Bearings 7219 CDGA/HCP4A

Super Precision Angular Contact Ball Bearings 7219 CDGA/HCP4A

The 7219 CDGA/HCP4A is a super precision angular contact ball bearing with a 95mm bore and 170mm outer diameter, crafted from durable chrome steel. It features ceramic balls and a phenolic cage for smooth operation at high speeds up to 15,000 RPM.

With a 15° contact angle, it handles radial loads up to 31,050 lbf and is preloaded for extra light performance. Its open design allows easy lubrication, making maintenance straightforward.

This bearing is ideal for precision applications like machine tools or high-speed spindles. It can be paired in back-to-back, face-to-face, or tandem arrangements for versatile use. Compliant with P4A tolerance standards, it ensures reliable performance in temperatures from -30°C to 110°C.

Weighing 2.2kg, it’s robust yet suitable for demanding industrial environments. Interchangeable with SKF bearings, it offers a practical replacement option.

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Product Parameters

  • Part Number 7219 CDGA/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 95 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 170 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 32 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 23.812 mm
  • Ball Qty 15
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • 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 31050 lbf
  • Static Radial Load 27000 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 15000 rpm
  • Weight 2.2 kg
Super Precision Angular Contact Ball Bearings 7219 CDGA/HCP4A dimension drawing
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Features

Engineered for Precision: 7219 CDGA/HCP4A Bearing

7219 CDGA/HCP4A Bearing features a 15° contact angle, optimised for high-precision angular contact applications.
The combination of chrome steel rings and ceramic balls ensures smooth operation with minimal friction.

With a dynamic radial load capacity of 31050 lbf, it handles demanding tasks reliably.
Its phenolic cage maintains ball alignment, enhancing durability and performance.

Designed for extra light preload, 7219 CDGA/HCP4A Bearing excels in high-speed applications up to 15,000 rpm.
The open seal type allows for easy lubrication, ensuring consistent performance.

Operating within a temperature range of -30°C to 110°C, it adapts to various environments.
Its universal matching capability supports back-to-back, face-to-face, or tandem arrangements for versatile use.

Application

Industrial Uses of 7219 CDGA/HCP4A Bearing
The 7219 CDGA/HCP4A Bearing is commonly used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction and heat buildup.
Its precision design ensures smooth operation in demanding industrial environments, making it ideal for spindle applications.

Where Is 7219 CDGA/HCP4A Bearing Used?
You’ll often find the 7219 CDGA/HCP4A Bearing in automotive transmissions, where its angular contact design handles combined radial and axial loads efficiently.
The extra light preload also helps maintain accuracy in high-performance gear systems.

Built for Heavy-Duty Use: 7219 CDGA/HCP4A Bearing
This bearing excels in robotics and automation, particularly in robotic arms requiring precise movement and low vibration.
The P4A tolerance class ensures consistent performance even under continuous operation.

Medical vs Industrial: Where 7219 CDGA/HCP4A Bearing Excels
In medical imaging devices, the 7219 CDGA/HCP4A Bearing’s ceramic balls provide quiet and smooth rotation, essential for accurate diagnostics.
Meanwhile, its industrial applications include CNC machinery, where durability and precision are equally important.

Practical Applications of 7219 CDGA/HCP4A Bearing
The 7219 CDGA/HCP4A Bearing is a reliable choice for aerospace equipment, such as helicopter rotor systems, due to its high-speed capabilities.
Its chrome steel rings and ceramic balls also make it suitable for applications where corrosion resistance is needed.

Q&A

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