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Super Precision Angular Contact Ball Bearings 71944 ACDGA/P4AL

Super Precision Angular Contact Ball Bearings 71944 ACDGA/P4AL

The 71944 ACDGA/P4AL is a super precision angular contact ball bearing with a 220mm bore and 300mm outer diameter, crafted from high-quality chrome steel. Its 25° contact angle efficiently manages both radial and axial loads, suitable for high-speed applications up to 11000 RPM.

Featuring an open design and phenolic cage, it ensures smooth operation and durability. The extra-light preload (Class A) enhances precision, making it ideal for demanding machinery.

This bearing can handle dynamic radial loads up to 46800 lbf and static radial loads up to 64125 lbf. It operates reliably in temperatures ranging from -30°C to 110°C.

Compatible with SKF bearings, it’s often used in matched sets of three for back-to-back, face-to-face, or tandem arrangements. Perfect for precision equipment like machine tools or high-performance spindles.

Weighing 6.6kg, it’s robust yet manageable for its size. Compliant with P4A tolerance standards for exceptional accuracy.

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Product Parameters

  • Part Number 71944 ACDGA/P4AL
  • 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 38 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 25.4 mm
  • Ball Qty 29
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 3
  • 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 Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 46800 lbf
  • Static Radial Load 64125 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 11000 rpm
  • Weight 6.6 kg
Super Precision Angular Contact Ball Bearings 71944 ACDGA/P4AL dimension drawing
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Features

Performance Features of 71944 ACDGA/P4AL Bearing

71944 ACDGA/P4AL Bearing is crafted with chrome steel rings and balls, ensuring high precision and durability.
Its 25° contact angle provides excellent angular contact performance, suitable for complex load conditions.
The phenolic cage maintains ball alignment, reducing friction and enhancing operational smoothness.
With a dynamic radial load capacity of 46,800 lbf, it handles demanding applications with ease.

How Is 71944 ACDGA/P4AL Bearing Engineered for Reliability?

71944 ACDGA/P4AL Bearing features a P4A tolerance class, guaranteeing superior precision in high-speed operations.
The extra light preload ensures minimal friction, making it ideal for precision machinery.
Its open design allows for easy lubrication, maintaining performance over extended periods.
With a maximum speed of 11,000 rpm, it balances speed and reliability effectively.

Designed for Durability: 71944 ACDGA/P4AL Bearing

71944 ACDGA/P4AL Bearing’s chrome steel construction resists wear, ensuring a long service life.
The 29-ball configuration distributes loads evenly, reducing stress on individual components.
Its temperature range of -30°C to 110°C makes it suitable for various environmental conditions.
Weighing 6.6 kg, it offers a robust yet manageable solution for industrial applications.

Steel vs Ceramic Bearings: Strengths of 71944 ACDGA/P4AL Bearing

71944 ACDGA/P4AL Bearing utilises chrome steel for both rings and balls, providing excellent strength and durability.
This material choice ensures reliable performance under high radial and angular loads.
The phenolic cage adds stability, reducing vibration and noise during operation.
Its compatibility with universal matching allows flexible installation in back-to-back or face-to-face arrangements.

Application

Industrial Uses of 71944 ACDGA/P4AL Bearing
71944 ACDGA/P4AL Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The open seal type allows for efficient lubrication, extending service life in demanding conditions.

In automotive applications, 71944 ACDGA/P4AL Bearing supports high-speed components like turbochargers and transmission systems. Its extra light preload helps maintain smooth operation under varying loads.

For medical imaging devices, 71944 ACDGA/P4AL Bearing’s phenolic cage reduces friction, making it ideal for sensitive equipment. The chrome steel construction provides durability in sterile environments.

Automation systems benefit from 71944 ACDGA/P4AL Bearing’s ability to handle radial and axial loads simultaneously. Its P4A tolerance class ensures consistent performance in robotic arms and CNC machines.

In consumer electronics, 71944 ACDGA/P4AL Bearing is found in high-end printers and scanners, where precision is key. The lubricated design minimises noise, enhancing user experience.

Q&A

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