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Super Precision Angular Contact Ball Bearings 71956 ACD/P4ATGB

Super Precision Angular Contact Ball Bearings 71956 ACD/P4ATGB

The 71956 ACD/P4ATGB is a super precision angular contact ball bearing with a 280mm bore and 380mm outer diameter, crafted from high-quality chrome steel. Its 25° contact angle and open design ensure smooth operation under radial loads up to 133200 lbf.

With a phenolic cage and light preload, it offers stable performance at speeds up to 7500 RPM. The bearing is lubricated for long-lasting use and works in temperatures from -30°C to 110°C.

This model comes in a matched set of three, suitable for universal mounting arrangements like back-to-back or face-to-face. Ideal for high-precision machinery such as CNC spindles or industrial gearboxes.

Weighing 38.7kg, it’s a robust choice for heavy-duty applications. Compliant with P4A tolerance class for exceptional accuracy.

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Product Parameters

  • Part Number 71956 ACD/P4ATGB
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 280 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 380 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 138 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 30.162 mm
  • Ball Qty 31
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Universal matching
  • Number Of Bearings In Matched Set 3
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 133200 lbf
  • Static Radial Load 290250 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 7500 rpm
  • Weight 38.7 kg
Super Precision Angular Contact Ball Bearings 71956 ACD/P4ATGB dimension drawing
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Features

Performance Features of 71956 ACD/P4ATGB Bearing

71956 ACD/P4ATGB Bearing is designed with a 25° contact angle, providing excellent radial and axial load capacity.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and wear.

With a dynamic radial load of 133,200 lbf, it handles demanding applications with ease.
The P4A tolerance class guarantees high precision, making it suitable for critical operations.

71956 ACD/P4ATGB Bearing operates smoothly at speeds up to 7,500 rpm.
Its universal matching design allows flexible arrangement in back-to-back, face-to-face, or tandem configurations.

Application

Industrial Uses of 71956 ACD/P4ATGB Bearing
71956 ACD/P4ATGB Bearing is commonly used in high-precision machine tools, where its 25° contact angle ensures accurate radial and axial load handling. The universal matching feature allows for flexible arrangements like back-to-back or face-to-face setups.

In aerospace applications, 71956 ACD/P4ATGB Bearing supports critical components like turbine shafts, thanks to its phenolic cage and chrome steel construction. Its P4A tolerance class guarantees the precision needed for such demanding environments.

For automation systems, 71956 ACD/P4ATGB Bearing excels in robotic arms and CNC machines, where light preload enhances performance. The lubricated design also ensures smooth operation at high speeds.

Medical imaging devices benefit from 71956 ACD/P4ATGB Bearing’s reliability, as its static radial load capacity suits heavy-duty equipment. The temperature range of -30°C to 110°C makes it versatile for various clinical settings.

In wind turbines, 71956 ACD/P4ATGB Bearing handles both radial and axial loads efficiently, thanks to its matched set of three bearings. The open seal type simplifies maintenance in remote installations.

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