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Super Precision Angular Contact Ball Bearings 71812 ACD/P4DGA

Super Precision Angular Contact Ball Bearings 71812 ACD/P4DGA

The 71812 ACD/P4DGA is a super precision angular contact ball bearing with a 60mm bore and 78mm outer diameter, crafted from durable chrome steel. Its 25° contact angle and extra light preload ensure smooth operation under angular loads.

This bearing handles dynamic radial loads up to 4680 lbf and spins at speeds up to 35,000 RPM. The phenolic cage offers quiet performance, while the open design allows easy lubrication.

Its universal matching feature lets you arrange bearings back-to-back, face-to-face, or tandem for different needs. The P4 tolerance class guarantees high precision.

Ideal for machine tools or high-speed spindles where accuracy matters. Weighing just 0.2kg, it’s lightweight yet robust for demanding applications.

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Product Parameters

  • Part Number 71812 ACD/P4DGA
  • 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 Extra light / Class A
  • 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
  • Price（$） 14.769
Super Precision Angular Contact Ball Bearings 71812 ACD/P4DGA dimension drawing
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Features

Performance Features of 71812 ACD/P4DGA Bearing

71812 ACD/P4DGA Bearing is crafted with a 25° contact angle, ideal for handling combined radial and axial loads.
Its universal matching design allows flexible arrangement in back-to-back, face-to-face, or tandem configurations.

The chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and noise.
With a dynamic radial load capacity of 4680 lbf, it performs reliably in high-speed applications.

71812 ACD/P4DGA Bearing operates smoothly at speeds up to 35,000 rpm, thanks to its precision P4 tolerance class.
The extra light preload enhances performance, making it suitable for demanding tasks.

Designed for temperatures from -30°C to 110°C, it maintains stability in varied environments.
Its open design simplifies lubrication, ensuring consistent performance over time.

Application

Industrial Uses of 71812 ACD/P4DGA Bearing
71812 ACD/P4DGA Bearing is commonly used in high-speed machine tools, where its precision and angular contact design ensure accurate spindle rotation. The phenolic cage reduces friction, making it suitable for continuous operation.

Where Is 71812 ACD/P4DGA Bearing Used?
You’ll find 71812 ACD/P4DGA Bearing in automotive transmissions, where its extra-light preload enhances smooth gear shifting. Its universal matching feature allows flexible installation in various configurations.

Optimized for Performance: 71812 ACD/P4DGA Bearing
71812 ACD/P4DGA Bearing excels in robotics, providing stable movement for robotic arms due to its P4 tolerance class. The chrome steel construction ensures durability in demanding environments.

Automotive vs Aerospace: Applications of 71812 ACD/P4DGA Bearing
In automotive systems, 71812 ACD/P4DGA Bearing supports high-speed components like turbochargers. For aerospace, its lightweight design and precision make it ideal for flight control systems.

Practical Applications of 71812 ACD/P4DGA Bearing
71812 ACD/P4DGA Bearing is a reliable choice for medical imaging devices, where its low vibration and high-speed capabilities are crucial. The open seal design allows for easy lubrication maintenance.

Q&A

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