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Super Precision Angular Contact Ball Bearings 71820 ACD/P4DGA

Super Precision Angular Contact Ball Bearings 71820 ACD/P4DGA

The 71820 ACD/P4DGA is a super precision angular contact ball bearing with a 100mm bore and 125mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 7762 lbf and spins smoothly at speeds up to 15000 RPM.

With a 25° contact angle and universal matching design, it offers flexibility for back-to-back, face-to-face, or tandem arrangements. The phenolic cage ensures quiet operation and long service life.

Its extra-light preload (Class A) and P4 tolerance class make it ideal for high-precision applications like machine tools or spindle drives. The open design allows for easy lubrication and maintenance.

Weighing 0.62kg, this bearing operates reliably in temperatures from -30°C to 110°C. It’s interchangeable with SKF bearings, making it a practical choice for replacements or upgrades.

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Product Parameters

  • Part Number 71820 ACD/P4DGA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 100 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 125 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 26 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.144 mm
  • Ball Qty 34
  • Contact Angle 25°
  • Tolerance Class P4
  • 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 7762 lbf
  • Static Radial Load 12375 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 15000 rpm
  • Weight 0.62 kg
Super Precision Angular Contact Ball Bearings 71820 ACD/P4DGA dimension drawing
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Features

Performance Features of 71820 ACD/P4DGA Bearing

71820 ACD/P4DGA Bearing is crafted with chrome steel rings and balls, ensuring high precision and durability.
Its 25° contact angle allows for efficient handling of combined radial and axial loads.

The phenolic cage maintains ball alignment, reducing friction and noise during operation.
With a dynamic radial load capacity of 7762 lbf, it performs reliably under stress.

Designed for universal matching, 71820 ACD/P4DGA Bearing offers flexibility in various configurations.
Its extra light preload ensures smooth rotation, ideal for high-speed applications up to 15,000 rpm.

Application

Industrial Uses of 71820 ACD/P4DGA Bearing
71820 ACD/P4DGA Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate alignment under radial and axial loads. The universal matching feature allows for flexible configurations in complex setups.

In robotics, 71820 ACD/P4DGA Bearing provides smooth motion control for articulated arms, thanks to its extra-light preload and phenolic cage. Its high-speed capability makes it suitable for automated production lines.

For aerospace applications, 71820 ACD/P4DGA Bearing’s P4 tolerance class guarantees reliability in critical components like flight control systems. The chrome steel construction ensures durability even in demanding conditions.

Where Is 71820 ACD/P4DGA Bearing Used?
You’ll find 71820 ACD/P4DGA Bearing in medical imaging devices, where its precision and low friction are essential for clear scans. The lubricated design also reduces maintenance needs in sterile environments.

In automotive testing equipment, 71820 ACD/P4DGA Bearing handles high-speed rotations with minimal vibration. Its matched arrangement simplifies installation in custom rigs.

Built for Heavy-Duty Use: 71820 ACD/P4DGA Bearing
71820 ACD/P4DGA Bearing excels in industrial pumps, where its dynamic load capacity ensures long service life. The open seal type allows for easy inspection and relubrication.

For semiconductor manufacturing, 71820 ACD/P4DGA Bearing’s temperature stability is key in cleanroom environments. The phenolic cage resists corrosion from chemical exposure.

Automotive vs Aerospace: Applications of 71820 ACD/P4DGA Bearing
In automotive transmissions, 71820 ACD/P4DGA Bearing supports smooth gear shifts with its angular contact design. The metric sizing fits most European and Asian models.

For aerospace actuators, 71820 ACD/P4DGA Bearing’s high-speed performance and precision are critical. The universal matching feature allows for tailored configurations in compact spaces.

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