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Super Precision Angular Contact Ball Bearings 71930 ACD/P4ADGA

Super Precision Angular Contact Ball Bearings 71930 ACD/P4ADGA

The 71930 ACD/P4ADGA is a super precision angular contact ball bearing with a 150mm bore and 210mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 40050 lbf and operates smoothly at speeds up to 11000 RPM.

Its 25° contact angle and universal matching design allow flexible arrangements like back-to-back or face-to-face, ideal for complex setups. The phenolic cage ensures durability while keeping the bearing lightweight.

With an extra light preload (Class A), it offers precise performance for demanding applications. Suitable for machine tools or high-speed spindles where accuracy is crucial.

Weighing 5kg, this bearing comes as a matched set of two, ensuring consistent performance. It works in temperatures from -30°C to 110°C and is interchangeable with SKF models.

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Product Parameters

  • Part Number 71930 ACD/P4ADGA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 150 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 210 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 56 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 19.05 mm
  • Ball Qty 23
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Universal matching
  • Number Of Bearings In Matched Set 2
  • 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 40050 lbf
  • Static Radial Load 56250 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 11000 rpm
  • Weight 5 kg
  • Price（$） 1329.84
Super Precision Angular Contact Ball Bearings 71930 ACD/P4ADGA dimension drawing
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Features

Performance Features of 71930 ACD/P4ADGA Bearing

71930 ACD/P4ADGA Bearing is designed with a 25° contact angle, ideal for handling combined radial and axial loads.

Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction for smoother operation.

With a dynamic radial load capacity of 40050 lbf, it performs reliably in high-precision applications.

The universal matching feature allows flexible arrangements like back-to-back or face-to-face configurations.

Application

Key Fields for 71930 ACD/P4ADGA Bearing
71930 ACD/P4ADGA Bearing is widely used in high-precision machine tools, where its 25° contact angle ensures accurate radial and axial load distribution. The universal matching design allows flexible arrangements for complex machinery setups.

In aerospace applications, 71930 ACD/P4ADGA Bearing supports critical components like turbine shafts, thanks to its extra-light preload and P4A tolerance class. The phenolic cage reduces friction, enhancing performance at high speeds.

For automation systems, 71930 ACD/P4ADGA Bearing is ideal for robotic arms and CNC spindles, offering smooth operation under dynamic loads. Its chrome steel construction provides durability in continuous-use environments.

Medical imaging devices benefit from 71930 ACD/P4ADGA Bearing’s precision and low vibration, ensuring clear and stable results. The open design simplifies lubrication maintenance in sensitive equipment.

In electric vehicle drivetrains, 71930 ACD/P4ADGA Bearing handles angular loads efficiently, contributing to longer component life. The metric sizing ensures compatibility with global automotive standards.

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