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Super Precision Angular Contact Ball Bearings 71928 ACD/P4ADGA

Super Precision Angular Contact Ball Bearings 71928 ACD/P4ADGA

The 71928 ACD/P4ADGA is a super precision angular contact ball bearing with a 140mm bore and 190mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 32850 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 precise applications. The phenolic cage ensures durability while keeping the bearing lightweight.

With an extra light preload (Class A), it offers minimal friction and high accuracy. Suitable for machine tools or high-speed spindles where precision is key.

Weighing 3.3kg, it’s robust yet manageable. Compliant with P4A tolerance standards, ensuring reliable performance in temperatures from -30°C to 110°C.

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Product Parameters

  • Part Number 71928 ACD/P4ADGA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 140 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 190 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 48 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 15.875 mm
  • Ball Qty 29
  • 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 32850 lbf
  • Static Radial Load 49500 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 11000 rpm
  • Weight 3.3 kg
Super Precision Angular Contact Ball Bearings 71928 ACD/P4ADGA dimension drawing
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Features

Performance Features of 71928 ACD/P4ADGA Bearing

71928 ACD/P4ADGA Bearing is designed with a 25° contact angle, optimised for handling combined radial and axial loads.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and heat generation.
The bearing’s universal matching allows flexible arrangements like back-to-back or face-to-face configurations.

How Is 71928 ACD/P4ADGA Bearing Engineered for Reliability?

71928 ACD/P4ADGA Bearing’s P4A tolerance class ensures high precision, making it suitable for demanding applications.
The extra light preload (Class A) minimises friction, enhancing efficiency and extending service life.
With a dynamic radial load capacity of 32,850 lbf, it performs reliably under heavy loads.

Built for Precision: 71928 ACD/P4ADGA Bearing

71928 ACD/P4ADGA Bearing achieves smooth operation at speeds up to 11,000 rpm, thanks to its balanced design.
The phenolic cage maintains ball alignment, reducing vibration and noise during high-speed rotation.
Its temperature range of -30°C to 110°C ensures consistent performance in various environments.

Steel vs Ceramic Bearings: Strengths of 71928 ACD/P4ADGA Bearing

71928 ACD/P4ADGA Bearing’s chrome steel construction offers a cost-effective solution without compromising performance.
The material provides excellent wear resistance, maintaining precision over extended periods.
With 29 balls of 15.875 mm diameter, it distributes loads evenly for smoother operation.

What Ensures Smooth Operation in 71928 ACD/P4ADGA Bearing?

71928 ACD/P4ADGA Bearing’s universal matching design allows for precise alignment in various configurations.
The lubricated setup reduces friction, ensuring quiet and efficient performance.
Its static radial load capacity of 49,500 lbf guarantees stability even under heavy loads.

Application

Key Fields for 71928 ACD/P4ADGA Bearing
71928 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 feature allows flexible arrangements, making it suitable for complex setups.

In robotics, 71928 ACD/P4ADGA Bearing provides smooth motion control in articulated arms, thanks to its extra-light preload and phenolic cage. The P4A tolerance class guarantees consistent performance in repetitive tasks.

For aerospace applications, 71928 ACD/P4ADGA Bearing handles high-speed rotations in turbine systems, with its chrome steel construction offering durability. The lubricated design further reduces friction, extending service life.

Medical imaging devices benefit from 71928 ACD/P4ADGA Bearing’s low-noise operation and precise movement. Its open seal type simplifies maintenance, ensuring reliability in critical healthcare environments.

In automotive testing equipment, 71928 ACD/P4ADGA Bearing supports accurate measurements under varying loads. The matched set configuration enhances stability, making it ideal for dynamic testing scenarios.

Q&A

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