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Super Precision Angular Contact Ball Bearings 71812 ACD/P4DBA

Super Precision Angular Contact Ball Bearings 71812 ACD/P4DBA

The 71812 ACD/P4DBA is a super precision angular contact ball bearing, measuring 60mm by 78mm by 20mm. Made from chrome steel, it offers high durability and smooth operation.

With a 25° contact angle, it handles both radial and axial loads effectively. It can spin at speeds up to 35,000 RPM, making it suitable for high-performance applications.

The open design and phenolic cage ensure easy maintenance and long service life. Its extra light preload (Class A) provides precise movement with minimal friction.

Ideal for machine tools or precision equipment where accuracy is key. The matched pair arrangement (DB) enhances stability under load. Compliant with P4 tolerance standards for reliable performance.

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Product Parameters

  • Part Number 71812 ACD/P4DBA
  • 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 2 bearings <> DB
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • 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
Super Precision Angular Contact Ball Bearings 71812 ACD/P4DBA dimension drawing
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Features

Performance Features of 71812 ACD/P4DBA Bearing

71812 ACD/P4DBA Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability, while the phenolic cage minimises friction for smoother operation.

The bearing’s P4 tolerance class guarantees high precision, making it suitable for demanding tasks.
With a dynamic radial load capacity of 4680 lbf, it handles heavy loads efficiently.

71812 ACD/P4DBA Bearing operates at speeds up to 35,000 rpm, balancing performance and reliability.
Its matched arrangement of two bearings ensures stability in high-precision applications.

The extra light preload reduces friction, enhancing the bearing’s lifespan.
Its open design allows for easy lubrication, maintaining optimal performance over time.

Application

Industrial Uses of 71812 ACD/P4DBA Bearing
71812 ACD/P4DBA Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The matched arrangement of two bearings provides stability in demanding industrial environments.

In automotive applications, 71812 ACD/P4DBA Bearing supports high-speed components like turbochargers and electric motors. Its extra light preload helps reduce friction, improving overall efficiency.

For medical imaging devices, 71812 ACD/P4DBA Bearing’s phenolic cage and chrome steel construction offer reliable performance. The P4 tolerance class ensures smooth operation in sensitive equipment.

Automation systems benefit from 71812 ACD/P4DBA Bearing’s ability to handle both radial and axial loads. Its high-speed capability makes it suitable for robotic arms and CNC machinery.

In consumer electronics, 71812 ACD/P4DBA Bearing is found in precision devices like 3D printers. The lubricated design ensures quiet operation and long service life.

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