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Super Precision Angular Contact Ball Bearings 71944 CD/HCP4ADBA

Super Precision Angular Contact Ball Bearings 71944 CD/HCP4ADBA

The 71944 CD/HCP4ADBA is a super precision angular contact ball bearing with a 220mm bore and 300mm outer diameter, designed for high-performance applications. Its compact 76mm width and chrome steel construction ensure durability while handling radial loads up to 80550 lbf.

With a 15° contact angle and ceramic balls, it spins smoothly at speeds up to 11000 RPM. The phenolic cage reduces friction, and the extra light preload (Class A) ensures precise operation.

This matched set of two bearings (DB arrangement) is ideal for machine tools or high-speed spindles where accuracy is key. It operates in temperatures from -30°C to 110°C and comes pre-lubricated for easy use.

Weighing 11.1kg, it’s robust yet designed for precision. Interchangeable with SKF bearings, it meets P4A tolerance standards for reliable performance.

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Product Parameters

  • Part Number 71944 CD/HCP4ADBA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 220 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 300 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 76 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 25.4 mm
  • Ball Qty 29
  • 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 Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 80550 lbf
  • Static Radial Load 135000 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 11000 rpm
  • Weight 11.1 kg
Super Precision Angular Contact Ball Bearings 71944 CD/HCP4ADBA dimension drawing
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Features

Performance Features of 71944 CD/HCP4ADBA Bearing

71944 CD/HCP4ADBA Bearing is designed with a 15° contact angle, optimising load distribution for precision 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 11,000 rpm.
With a dynamic radial load capacity of 80,550 lbf, it handles demanding conditions reliably.

71944 CD/HCP4ADBA Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its extra light preload (Class A) ensures minimal vibration and noise during use.

The matched arrangement of two bearings provides stability in angular contact applications.
Precision tolerances (P4A) guarantee consistent performance in high-accuracy machinery.

Application

Key Fields for 71944 CD/HCP4ADBA Bearing
71944 CD/HCP4ADBA Bearing is widely used in high-precision machine tools, where its ceramic balls and phenolic cage ensure minimal friction and heat generation. The 15° contact angle provides excellent radial and axial load support for spindle applications.

In aerospace components, 71944 CD/HCP4ADBA Bearing handles extreme speeds with its P4A tolerance class, making it suitable for turbine engines and flight control systems. The matched arrangement further enhances stability in critical operations.

For medical imaging devices like MRI scanners, 71944 CD/HCP4ADBA Bearing’s chrome steel rings offer durability while maintaining quiet operation. Its lubricated design ensures smooth performance over long periods without maintenance.

Automation systems benefit from 71944 CD/HCP4ADBA Bearing’s extra light preload, which reduces vibration in robotic arms and CNC machinery. The metric dimensions make it easy to integrate into European-designed equipment.

In high-speed electric motors, 71944 CD/HCP4ADBA Bearing’s ceramic balls reduce wear and extend service life. The open seal design allows for efficient cooling during continuous operation.

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