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Super Precision Angular Contact Ball Bearings 71944 ACD/P4AQBCA

Super Precision Angular Contact Ball Bearings 71944 ACD/P4AQBCA

The 71944 ACD/P4AQBCA is a super precision angular contact ball bearing with a 220mm bore and 300mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 124425 lbf and operates smoothly at speeds up to 11000 RPM.

Its 25° contact angle and matched set of four bearings provide excellent stability for angular loads. The phenolic cage ensures quiet operation and durability under high-speed conditions.

Designed for extra light preload, this bearing is ideal for precision applications like machine tool spindles or high-performance motors. It works reliably in temperatures from -30°C to 110°C.

Weighing 26.4kg, it’s a robust choice for heavy-duty machinery. Compliant with P4A tolerance standards, it’s interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 71944 ACD/P4AQBCA
  • 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 152 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 4 bearings <<>> QBC
  • Number Of Bearings In Matched Set 4
  • Universal Matching Bearing No
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 124425 lbf
  • Static Radial Load 256500 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 11000 rpm
  • Weight 26.4 kg
Super Precision Angular Contact Ball Bearings 71944 ACD/P4AQBCA dimension drawing
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Features

Performance Features of 71944 ACD/P4AQBCA Bearing

71944 ACD/P4AQBCA Bearing is designed with a 25° contact angle, optimising load distribution for precision applications.

The chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and wear.

With a dynamic radial load capacity of 124425 lbf, it handles demanding conditions reliably.

Its P4A tolerance class guarantees high precision, making it suitable for critical operations.

How Does 71944 ACD/P4AQBCA Bearing Achieve High-Speed Performance?

71944 ACD/P4AQBCA Bearing’s extra light preload design minimises friction, enabling smooth operation at speeds up to 11,000 rpm.

The matched arrangement of four bearings ensures balanced performance in angular contact applications.

Its open seal type allows for efficient lubrication, further enhancing high-speed capabilities.

The 25.4 mm ball diameter and 29-ball configuration contribute to its stability under load.

Engineered for Precision: 71944 ACD/P4AQBCA Bearing

71944 ACD/P4AQBCA Bearing’s P4A tolerance class ensures exceptional accuracy for high-precision machinery.

The chrome steel construction provides strength, while the phenolic cage offers quiet and efficient operation.

With a static radial load capacity of 256500 lbf, it maintains performance under heavy loads.

Its temperature range of -30°C to 110°C makes it versatile for various industrial environments.

Why Choose 71944 ACD/P4AQBCA Bearing for Angular Contact Applications?

71944 ACD/P4AQBCA Bearing’s 25° contact angle is ideal for handling combined radial and axial loads.

The matched set of four bearings ensures consistent performance in demanding angular contact scenarios.

Its extra light preload reduces friction, enhancing efficiency and extending service life.

The open design allows for easy lubrication, maintaining smooth operation over time.

Application

Industrial Uses of 71944 ACD/P4AQBCA Bearing
71944 ACD/P4AQBCA Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The phenolic cage reduces friction, making it suitable for continuous operation in demanding environments.

In aerospace applications, 71944 ACD/P4AQBCA Bearing supports components like helicopter rotor systems, thanks to its ability to handle both radial and axial loads. The extra light preload further enhances performance in high-speed scenarios.

For automation systems, 71944 ACD/P4AQBCA Bearing is a reliable choice for robotic arms, where its P4A tolerance class guarantees consistent movement. The matched arrangement of four bearings also provides added stability in complex machinery.

Medical imaging devices benefit from 71944 ACD/P4AQBCA Bearing’s chrome steel construction, which ensures smooth and quiet operation. Its wide temperature range makes it adaptable to various clinical settings.

In the energy sector, 71944 ACD/P4AQBCA Bearing is often found in wind turbine gearboxes, where its durability and high load capacity are essential. The lubricated design also helps maintain performance in harsh outdoor conditions.

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