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Super Precision Angular Contact Ball Bearings 71812 ACD/P4TBTB

Super Precision Angular Contact Ball Bearings 71812 ACD/P4TBTB

The 71812 ACD/P4TBTB is a super precision angular contact ball bearing with a 60mm bore and 78mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 6210 lbf and spins smoothly at speeds up to 33,000 RPM.

With a 25° contact angle and light preload, it offers excellent accuracy for high-speed applications. The phenolic cage ensures quiet operation and long service life.

This bearing comes in a matched set of three, arranged in a TBT configuration for balanced performance. Ideal for machine tools or precision equipment where tight tolerances are crucial.

Weighing just 0.3kg, it operates in temperatures from -30°C to 110°C. Its open design allows for easy lubrication and maintenance.

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Product Parameters

  • Part Number 71812 ACD/P4TBTB
  • 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 30 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 3 bearings <>> TBT
  • Number Of Bearings In Matched Set 3
  • Universal Matching Bearing No
  • Preload Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 6210 lbf
  • Static Radial Load 9000 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 33000 rpm
  • Weight 0.3 kg
Super Precision Angular Contact Ball Bearings 71812 ACD/P4TBTB dimension drawing
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Features

How Does 71812 ACD/P4TBTB Bearing Reduce Friction?

71812 ACD/P4TBTB Bearing features a 25° contact angle, optimising load distribution and reducing friction during operation.
The chrome steel construction ensures smooth movement, even at high speeds up to 33,000 rpm.

Its phenolic cage maintains ball alignment, minimising wear and enhancing efficiency.
With a dynamic radial load capacity of 6210 lbf, it delivers reliable performance in precision applications.

The open design allows for easy lubrication, further reducing friction and extending service life.
Light preload class B ensures smooth operation without unnecessary resistance.

Application

Common Applications of 71812 ACD/P4TBTB Bearing
71812 ACD/P4TBTB Bearing is widely used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The matched set of three bearings provides stability for demanding operations like milling and grinding.

In aerospace applications, 71812 ACD/P4TBTB Bearing supports components in flight control systems, thanks to its light preload and high-speed capability. The phenolic cage reduces friction, making it suitable for continuous use.

For robotics, 71812 ACD/P4TBTB Bearing excels in articulated arms, where smooth movement and low vibration are essential. Its P4 tolerance class guarantees consistent performance in automated assembly lines.

Medical imaging devices benefit from 71812 ACD/P4TBTB Bearing’s precision, ensuring quiet and reliable operation in MRI machines. The chrome steel construction also resists wear in sterile environments.

In electric motors, 71812 ACD/P4TBTB Bearing handles high rotational speeds while maintaining minimal noise. Its open design allows for easy lubrication, extending service life in industrial settings.

Q&A

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