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Super Precision Angular Contact Ball Bearings 71940 ACD/P4ATBTB

Super Precision Angular Contact Ball Bearings 71940 ACD/P4ATBTB

The 71940 ACD/P4ATBTB is a super precision angular contact ball bearing with a 200mm bore and 280mm outer diameter, crafted from high-quality chrome steel. Its 25° contact angle and matched set of three bearings provide excellent stability for angular loads.

Designed for high-speed operations up to 6300 RPM, it handles radial loads up to 95175 lbf. The phenolic cage ensures smooth rotation, while the open design allows for easy lubrication.

With a tight P4A tolerance class, this bearing offers reliable performance in temperatures from -30°C to 110°C. Its 26 balls, each 25.4mm in diameter, contribute to its durability.

Ideal for precision machinery like spindles or CNC equipment, this 18.3kg bearing set is interchangeable with SKF models. The light preload (Class B) ensures optimal performance in demanding applications.

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Product Parameters

  • Part Number 71940 ACD/P4ATBTB
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 200 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 280 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 114 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 25.4 mm
  • Ball Qty 26
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 3 bearings <>> TBT
  • Number Of Bearings In Matched Set 3
  • Universal Matching Bearing No
  • Preload Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 95175 lbf
  • Static Radial Load 168750 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 6300 rpm
  • Weight 18.3 kg
Super Precision Angular Contact Ball Bearings 71940 ACD/P4ATBTB dimension drawing
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Features

Performance Features of 71940 ACD/P4ATBTB Bearing

71940 ACD/P4ATBTB Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.

Its chrome steel rings and balls provide strong resistance to dynamic radial loads up to 95175 lbf.

The phenolic cage ensures smooth operation, even at high speeds of up to 6,300 rpm.

With a precision tolerance class of P4A, it delivers reliable performance in demanding conditions.

Application

Industrial Uses of 71940 ACD/P4ATBTB Bearing
71940 ACD/P4ATBTB Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The matched set of three bearings provides stability in heavy cutting operations.

In aerospace applications, 71940 ACD/P4ATBTB Bearing supports critical components like turbine shafts, thanks to its ability to handle both radial and axial loads. The phenolic cage offers lightweight durability, ideal for high-speed environments.

For automation systems, 71940 ACD/P4ATBTB Bearing is a reliable choice for robotic arms, where smooth movement is essential. Its light preload class ensures minimal friction, enhancing efficiency in repetitive tasks.

Medical imaging devices benefit from 71940 ACD/P4ATBTB Bearing’s precision, particularly in MRI machines where consistent performance is vital. The chrome steel construction ensures long-term reliability in sensitive environments.

In consumer electronics, 71940 ACD/P4ATBTB Bearing can be found in high-end printers, where its low noise operation improves user experience. The open design allows for easy lubrication, extending the bearing’s service life.

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