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Super Precision Angular Contact Ball Bearings 71812 ACD/P4DBB

Super Precision Angular Contact Ball Bearings 71812 ACD/P4DBB

The 71812 ACD/P4DBB is a super precision angular contact ball bearing with a 60mm bore and 78mm outer diameter, crafted from durable chrome steel. It features a 25° contact angle and comes in a matched pair for balanced performance.

This bearing handles radial loads up to 4680 lbf and spins smoothly at high speeds, reaching up to 35,000 RPM. Its phenolic cage ensures quiet operation and long service life.

The open design allows for easy lubrication, while the light preload ensures minimal friction. Ideal for precision applications like machine tool spindles or high-speed motors.

Weighing just 0.2kg, it’s lightweight yet robust. Compliant with P4 tolerance standards for exceptional accuracy. Works well in temperatures from -30°C to 110°C.

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Product Parameters

  • Part Number 71812 ACD/P4DBB
  • 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 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/P4DBB dimension drawing
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Features

Performance Features of 71812 ACD/P4DBB Bearing

71812 ACD/P4DBB Bearing is designed with a 25° contact angle, ideal for handling combined radial and axial loads.
Its matched arrangement of two bearings ensures stability and precision in high-speed applications.

The chrome steel rings and balls provide excellent durability, while the phenolic cage reduces friction.
With a maximum speed of 35,000 rpm, it delivers reliable performance in demanding conditions.

71812 ACD/P4DBB Bearing’s light preload enhances accuracy, making it suitable for precision machinery.
Its dynamic radial load capacity of 4680 lbf ensures long-lasting operation under heavy loads.

The open design allows for easy lubrication, maintaining smooth performance over time.
Operating within a temperature range of -30°C to 110°C, it adapts to various environments.

Application

Common Applications of 71812 ACD/P4DBB Bearing
71812 ACD/P4DBB Bearing is widely used in high-speed machine tools, where its precision angular contact design ensures accurate spindle rotation. The matched arrangement of two bearings provides stability under radial and axial loads.

In robotics, 71812 ACD/P4DBB Bearing supports articulated arms, offering smooth movement and long service life. Its phenolic cage reduces friction, making it ideal for repetitive motions.

For aerospace applications, 71812 ACD/P4DBB Bearing handles the demanding conditions of flight control systems. The P4 tolerance class guarantees the reliability needed in critical operations.

Medical imaging devices benefit from 71812 ACD/P4DBB Bearing’s low noise and vibration. The chrome steel construction ensures durability in sterile environments.

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