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Super Precision Angular Contact Ball Bearings 71944 ACD/P4ADBC

Super Precision Angular Contact Ball Bearings 71944 ACD/P4ADBC

The 71944 ACD/P4ADBC is a super precision angular contact ball bearing with a 220mm bore and 300mm outer diameter, crafted from high-quality chrome steel. It measures 220mm x 300mm x 76mm, making it suitable for heavy-duty applications.

With a 25° contact angle and moderate preload, it handles radial loads up to 76050 lbf and spins smoothly at speeds up to 11000 RPM. The open design and phenolic cage ensure durability and easy maintenance.

This matched set of two bearings (DB arrangement) is ideal for high-precision machinery like spindles or CNC equipment. It operates reliably in temperatures from -30°C to 110°C.

Weighing 13.2kg, it’s robust yet precision-engineered for demanding environments. Compliant with P4A tolerance standards, it’s interchangeable with SKF bearings for seamless replacements.

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Product Parameters

  • Part Number 71944 ACD/P4ADBC
  • 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 25°
  • 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 Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 76050 lbf
  • Static Radial Load 128250 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 11000 rpm
  • Weight 13.2 kg
Super Precision Angular Contact Ball Bearings 71944 ACD/P4ADBC dimension drawing
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Features

Performance Features of 71944 ACD/P4ADBC Bearing

71944 ACD/P4ADBC Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.

Its chrome steel rings and balls provide high resistance to wear, ensuring consistent performance under dynamic radial loads up to 76050 lbf.

The phenolic cage maintains ball alignment, reducing friction and enhancing operational smoothness.

With a maximum speed of 11,000 rpm, it balances precision and efficiency in demanding conditions.

Application

Industrial Uses of 71944 ACD/P4ADBC Bearing
71944 ACD/P4ADBC Bearing is commonly used in high-precision machine tools, where its moderate preload and angular contact design ensure accurate spindle performance. The phenolic cage material helps reduce friction, making it suitable for long operational cycles.

In aerospace applications, 71944 ACD/P4ADBC Bearing supports critical components like turbine shafts, thanks to its high dynamic radial load capacity. The P4A tolerance class ensures consistent performance even under extreme conditions.

For automation systems, 71944 ACD/P4ADBC Bearing’s matched arrangement provides stability in robotic arms and CNC machines. Its chrome steel construction offers durability, while the open seal type allows for easy lubrication.

Medical imaging devices benefit from 71944 ACD/P4ADBC Bearing’s precision, as it maintains smooth rotation in MRI scanners. The temperature range of -30°C to 110°C ensures reliability in various clinical environments.

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