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Super Precision Angular Contact Ball Bearings 71820 ACDGC/P4

Super Precision Angular Contact Ball Bearings 71820 ACDGC/P4

The 71820 ACDGC/P4 is a super precision angular contact ball bearing with a 100mm bore and 125mm outer diameter, crafted from durable chrome steel. Its 25° contact angle efficiently handles combined radial and axial loads.

With a phenolic cage and moderate preload, it offers smooth operation at speeds up to 15,000 RPM. The open design allows easy lubrication, while the P4 tolerance ensures high running accuracy.

This bearing is suitable for universal matching in back-to-back, face-to-face, or tandem arrangements. Ideal for precision applications like machine tool spindles or high-speed rotary systems.

Weighing 0.31kg, it operates reliably in temperatures from -30°C to 110°C. Interchangeable with SKF bearings, it’s a practical choice for maintenance or upgrades.

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Product Parameters

  • Part Number 71820 ACDGC/P4
  • 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 13 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 No
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 4770 lbf
  • Static Radial Load 6188 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 15000 rpm
  • Weight 0.31 kg
Super Precision Angular Contact Ball Bearings 71820 ACDGC/P4 dimension drawing
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Features

Performance Features of 71820 ACDGC/P4 Bearing

71820 ACDGC/P4 Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
The chrome steel rings and balls enhance durability, supporting dynamic radial loads up to 4770 lbf.

Its phenolic cage ensures smooth operation, even at high speeds of 15,000 rpm.
The P4 tolerance class guarantees precision, making it suitable for demanding tasks.

With a temperature range of -30°C to 110°C, 71820 ACDGC/P4 Bearing performs reliably in varied conditions.
The moderate preload (Class C) balances performance and longevity, reducing maintenance needs.

The open design allows easy lubrication, ensuring consistent performance over time.
Its universal matching capability enables flexible configurations like back-to-back or face-to-face arrangements.

Application

Common Applications of 71820 ACDGC/P4 Bearing
In machine tools, 71820 ACDGC/P4 Bearing excels with its 25° contact angle, providing stability during high-speed operations. The phenolic cage reduces friction, making it suitable for precision grinding applications.

Where Is 71820 ACDGC/P4 Bearing Used?
You’ll often find 71820 ACDGC/P4 Bearing in automotive transmissions, where its moderate preload ensures smooth gear shifts. Its P4 tolerance class guarantees consistent performance under radial loads.

Optimized for Performance: 71820 ACDGC/P4 Bearing
For robotics, 71820 ACDGC/P4 Bearing’s open design allows easy lubrication, extending service life in articulated arms. The chrome steel construction handles angular loads effortlessly in repetitive motions.

Medical vs Industrial: Where 71820 ACDGC/P4 Bearing Excels
In medical imaging devices, 71820 ACDGC/P4 Bearing’s low vibration meets strict hygiene standards. Industrial pumps benefit from its 15,000 rpm capability and temperature resilience up to 110°C.

Practical Applications of 71820 ACDGC/P4 Bearing
Aerospace actuators use 71820 ACDGC/P4 Bearing for its lightweight phenolic cage and matched set versatility. The 100mm bore accommodates various shaft sizes in flight control systems.

Q&A

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