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Super Precision Angular Contact Ball Bearings 71920 ACBGA/P4A

Super Precision Angular Contact Ball Bearings 71920 ACBGA/P4A

The 71920 ACBGA/P4A is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from high-quality chrome steel. It handles both radial and angular loads, with a dynamic radial load capacity of 4568 lbf and a smooth operation up to 15,000 RPM.

Its open design and phenolic cage ensure durability and easy maintenance, while the 25° contact angle provides excellent stability. The bearing operates efficiently in temperatures ranging from -30°C to 110°C.

This model is available in matched sets of three, offering flexibility for back-to-back, face-to-face, or tandem arrangements. Ideal for high-precision applications like machine tools or spindle drives where accuracy is crucial.

Weighing 0.85kg, it’s a robust yet manageable option for demanding environments. Compliant with P4A tolerance standards for reliable performance.

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Product Parameters

  • Part Number 71920 ACBGA/P4A
  • 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 20 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 37
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Available
  • Number Of Bearings In Matched Set 3
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 4568 lbf
  • Static Radial Load 4770 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 15000 rpm
  • Weight 0.85 kg
Super Precision Angular Contact Ball Bearings 71920 ACBGA/P4A dimension drawing
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Features

Performance Features of 71920 ACBGA/P4A Bearing

71920 ACBGA/P4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability and smooth operation under high-speed conditions.

The phenolic cage in 71920 ACBGA/P4A Bearing reduces friction and wear, enhancing performance.
With a maximum speed of 15,000 rpm, it is suitable for precision tasks requiring high rotational accuracy.

71920 ACBGA/P4A Bearing can be arranged in matched sets for back-to-back, face-to-face, or tandem configurations.
This flexibility makes it adaptable to various mechanical setups and load requirements.

The extra light preload (Class A) ensures minimal friction while maintaining precision.
Its dynamic radial load capacity of 4568 lbf guarantees reliable performance in demanding applications.

Application

Common Applications of 71920 ACBGA/P4A Bearing
71920 ACBGA/P4A Bearing is widely used in machine tools, where its high precision and angular contact design ensure accurate spindle rotation. The phenolic cage reduces friction, making it suitable for high-speed operations.

In robotics, 71920 ACBGA/P4A Bearing supports articulated arms, providing smooth movement and reliability. Its matched arrangement allows for custom configurations, ideal for complex automation systems.

For aerospace applications, 71920 ACBGA/P4A Bearing handles radial and axial loads in components like landing gear systems. The chrome steel construction offers durability in demanding conditions.

Medical imaging devices benefit from 71920 ACBGA/P4A Bearing’s precision, ensuring consistent performance in scanners. The P4A tolerance class guarantees minimal vibration during operation.

In electric motors, 71920 ACBGA/P4A Bearing’s extra light preload reduces energy loss, enhancing efficiency. Its open design simplifies lubrication maintenance for long-term use.

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