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Super Precision Angular Contact Ball Bearings 71928 ACD/P4ADT

Super Precision Angular Contact Ball Bearings 71928 ACD/P4ADT

The 71928 ACD/P4ADT is a super precision angular contact ball bearing with a 140mm bore and 190mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 32850 lbf and operates smoothly at speeds up to 11000 RPM.

Its 25° contact angle and matched arrangement of two bearings provide excellent stability for angular loads. The phenolic cage ensures durability and reduces friction during high-speed rotations.

This bearing is preloaded for precision performance and works in temperatures from -30°C to 110°C. Ideal for applications like machine tool spindles or high-precision industrial equipment.

Weighing 3.3kg, it’s robust yet manageable for its size. Compliant with P4A tolerance class, it’s interchangeable with SKF bearings for easy replacements.

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Product Parameters

  • Part Number 71928 ACD/P4ADT
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 140 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 190 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 48 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 15.875 mm
  • Ball Qty 29
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 2 bearings << DT
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 32850 lbf
  • Static Radial Load 49500 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 11000 rpm
  • Weight 3.3 kg
Super Precision Angular Contact Ball Bearings 71928 ACD/P4ADT dimension drawing
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Features

Performance Features of 71928 ACD/P4ADT Bearing

71928 ACD/P4ADT Bearing is designed with a 25° contact angle, optimising load distribution for precision applications.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and wear.

With a dynamic radial load capacity of 32850 lbf, it handles demanding conditions reliably.
The P4A tolerance class guarantees high precision, making it suitable for critical operations.

71928 ACD/P4ADT Bearing operates smoothly at speeds up to 11,000 rpm.
Its matched arrangement of two bearings ensures stability and consistent performance.

The open design allows for easy lubrication, extending service life.
It performs well in temperatures ranging from -30°C to 110°C, adapting to various environments.

Application

Common Applications of 71928 ACD/P4ADT Bearing
71928 ACD/P4ADT Bearing is widely used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The matched arrangement of two bearings enhances stability, making it suitable for demanding machining tasks.

In aerospace applications, 71928 ACD/P4ADT Bearing supports critical components like turbine shafts, thanks to its ability to handle both radial and axial loads. The phenolic cage material provides lightweight durability, ideal for high-speed operations.

For robotics, 71928 ACD/P4ADT Bearing offers reliable performance in articulated arms, where smooth movement is essential. Its P4A tolerance class ensures minimal vibration, crucial for precision tasks in automated systems.

Medical imaging devices benefit from 71928 ACD/P4ADT Bearing’s consistent performance, especially in MRI machines where quiet operation is key. The chrome steel construction ensures long-term reliability in sterile environments.

In industrial pumps, 71928 ACD/P4ADT Bearing’s lubricated design reduces friction, extending service life even under continuous use. The 140 mm bore size makes it compatible with a range of heavy-duty pump models.

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