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Super Precision Angular Contact Ball Bearings 71920 ACD/P4ATBTA

Super Precision Angular Contact Ball Bearings 71920 ACD/P4ATBTA

The 71920 ACD/P4ATBTA is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 27900 lbf and operates smoothly at speeds up to 15000 RPM.

With a 25° contact angle and open design, it offers excellent performance in high-speed applications. The phenolic cage ensures durability and reduces friction, enhancing its lifespan.

This bearing comes in a matched set of three, arranged in a TBT configuration, providing extra stability for demanding setups. Ideal for precision machinery like CNC spindles or high-performance motors.

Weighing 2.4kg, it’s robust yet manageable for its size. Compliant with P4A tolerance standards, it ensures reliable accuracy in critical operations. Suitable for temperatures ranging from -30°C to 110°C.

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Product Parameters

  • Part Number 71920 ACD/P4ATBTA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 100 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 140 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 60 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 12.7 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 Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 27900 lbf
  • Static Radial Load 42750 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 15000 rpm
  • Weight 2.4 kg
Super Precision Angular Contact Ball Bearings 71920 ACD/P4ATBTA dimension drawing
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Features

Performance Features of 71920 ACD/P4ATBTA Bearing

71920 ACD/P4ATBTA Bearing is designed with a 25° contact angle, optimising load distribution for precision applications.
Its chrome steel construction ensures durability and consistent performance under high radial loads.

The phenolic cage maintains ball alignment, reducing friction and enhancing operational smoothness.
With a maximum speed of 15,000 rpm, it balances high-speed performance with reliability.

71920 ACD/P4ATBTA Bearing operates efficiently in temperatures from -30°C to 110°C, suitable for varied environments.
Its extra light preload class ensures minimal resistance, ideal for precision machinery.

The matched arrangement of three bearings provides stability and load-sharing capabilities.
This design reduces wear and extends the overall service life of the bearing set.

Lubrication is pre-applied, simplifying initial setup and reducing maintenance requirements.
The P4A tolerance class guarantees high precision, meeting stringent industry standards.

Application

Common Applications of 71920 ACD/P4ATBTA Bearing
71920 ACD/P4ATBTA Bearing is widely used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The phenolic cage reduces friction, making it suitable for high-speed operations.

In robotics, 71920 ACD/P4ATBTA Bearing supports articulated arms, providing smooth movement and long service life. Its matched arrangement of three bearings enhances stability in dynamic applications.

For aerospace components, 71920 ACD/P4ATBTA Bearing handles radial and axial loads efficiently, thanks to its chrome steel construction. The extra light preload ensures minimal vibration during flight operations.

Medical imaging devices benefit from 71920 ACD/P4ATBTA Bearing’s precision, ensuring reliable performance in critical diagnostics. The P4A tolerance class guarantees consistent accuracy in sensitive environments.

In automation systems, 71920 ACD/P4ATBTA Bearing is a trusted choice for linear guides and rotary tables. Its open design allows for easy lubrication, maintaining performance over extended periods.

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