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Super Precision Angular Contact Ball Bearings 71812 ACD/P4DGB

Super Precision Angular Contact Ball Bearings 71812 ACD/P4DGB

The 71812 ACD/P4DGB is a super precision angular contact ball bearing with a 60mm bore and 78mm outer diameter, crafted from high-quality chrome steel. Its compact 20mm width makes it suitable for space-sensitive applications.

With a 25° contact angle and light preload, it handles radial loads up to 4680 lbf and spins smoothly at speeds up to 35,000 RPM. The phenolic cage ensures quiet operation and durability.

Its universal matching design allows flexible arrangements like back-to-back or face-to-face, ideal for precision machinery. The open seal type simplifies lubrication and maintenance.

Perfect for high-speed spindles or CNC machines, this bearing operates reliably between -30°C and 110°C. Weighing just 0.2kg, it’s lightweight yet robust for its size. Compliant with P4 tolerance standards for exceptional accuracy.

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Product Parameters

  • Part Number 71812 ACD/P4DGB
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 60 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 78 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 20 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 5.556 mm
  • Ball Qty 28
  • 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 Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 4680 lbf
  • Static Radial Load 5962 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 35000 rpm
  • Weight 0.2 kg
Super Precision Angular Contact Ball Bearings 71812 ACD/P4DGB dimension drawing
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Features

Performance Features of 71812 ACD/P4DGB Bearing

71812 ACD/P4DGB Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel construction ensures durability and high performance under dynamic radial loads up to 4680 lbf.

The phenolic cage maintains ball alignment, reducing friction and enhancing smooth operation.
With a maximum speed of 35,000 rpm, it is suitable for high-speed precision tasks.

71812 ACD/P4DGB Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its universal matching design allows flexible arrangement options for varied applications.

The light preload class B ensures consistent performance with minimal maintenance.
Precision-engineered to P4 tolerance standards, it delivers reliable and accurate operation.

Application

Industrial Uses of 71812 ACD/P4DGB Bearing
71812 ACD/P4DGB Bearing is commonly used in high-speed machine tools, where its precision and light preload ensure smooth operation. The universal matching design allows for flexible arrangements, making it suitable for complex setups.

In robotics, 71812 ACD/P4DGB Bearing supports articulated arms, providing stability and accuracy in repetitive movements. Its phenolic cage reduces friction, enhancing performance in automated systems.

For aerospace applications, 71812 ACD/P4DGB Bearing’s chrome steel construction handles angular loads efficiently. The P4 tolerance class ensures reliability in critical flight components.

Where Is 71812 ACD/P4DGB Bearing Used?
You’ll find 71812 ACD/P4DGB Bearing in medical imaging devices, where its low vibration and high-speed capabilities are essential. The open seal design allows for easy lubrication, maintaining performance over time.

In electric motors, 71812 ACD/P4DGB Bearing reduces energy loss, thanks to its precise angular contact. The metric sizing ensures compatibility with a wide range of industrial equipment.

Built for Heavy-Duty Use: 71812 ACD/P4DGB Bearing
71812 ACD/P4DGB Bearing excels in conveyor systems, handling both radial and axial loads with ease. Its durable chrome steel rings withstand continuous operation in demanding environments.

For printing machinery, 71812 ACD/P4DGB Bearing’s high-speed tolerance ensures consistent performance. The tandem arrangement option provides additional flexibility for complex setups.

Automotive vs Aerospace: Applications of 71812 ACD/P4DGB Bearing
In automotive transmissions, 71812 ACD/P4DGB Bearing offers smooth angular load support, enhancing gear shifting. Its light preload reduces wear, extending component life.

For aerospace actuators, 71812 ACD/P4DGB Bearing’s precision and reliability are critical. The P4 tolerance class ensures it meets stringent industry standards.

Q&A

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