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Super Precision Angular Contact Ball Bearings 71811 ACD/P4

Super Precision Angular Contact Ball Bearings 71811 ACD/P4

The 71811 ACD/P4 is a super precision angular contact ball bearing with a 55mm bore and 72mm outer diameter, crafted from high-quality chrome steel. Its compact 9mm width makes it suitable for space-sensitive applications.

Designed for angular contact loads, it handles dynamic radial loads up to 2151 lbf and spins smoothly at speeds up to 24,000 RPM. The phenolic cage ensures quiet operation and durability.

With a 25° contact angle and P4 tolerance class, it offers excellent precision for demanding tasks. The open design allows for easy lubrication and maintenance.

Ideal for high-speed applications like machine tool spindles or precision instruments. Its lightweight design (0.081kg) and temperature range (-30°C to 110°C) make it versatile for various industrial uses.

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Product Parameters

  • Part Number 71811 ACD/P4
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 55 mm
  • Bore Dia Tolerance -0.007mm to 0
  • Outer Dia 72 mm
  • Outer Dia Tolerance -0.007mm to 0
  • Width 9 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 4.762 mm
  • Ball Qty 29
  • Contact Angle 25°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 2151 lbf
  • Static Radial Load 2295 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 24000 rpm
  • Weight 0.081 kg
  • Price（$） 461.232
Super Precision Angular Contact Ball Bearings 71811 ACD/P4 dimension drawing
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Features

Performance Features of 71811 ACD/P4 Bearing

71811 ACD/P4 Bearing is designed with a 25° contact angle, optimising it for angular contact loads.
Its chrome steel construction ensures durability and resistance to wear in high-speed applications.
The phenolic cage maintains ball alignment, reducing friction and enhancing performance.
With a maximum speed of 24,000 rpm, it delivers reliable operation in precision tasks.
The P4 tolerance class guarantees high accuracy, making it suitable for demanding industrial uses.

Application

Key Fields for 71811 ACD/P4 Bearing
71811 ACD/P4 Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The open seal type allows for efficient lubrication, extending service life in demanding conditions.

In robotics, 71811 ACD/P4 Bearing supports articulated arms, providing smooth movement with minimal friction. Its phenolic cage material helps reduce weight while maintaining structural integrity.

For medical imaging devices, 71811 ACD/P4 Bearing’s P4 tolerance class guarantees consistent performance in sensitive applications. The chrome steel construction also resists wear, ensuring long-term reliability.

Automotive applications like electric motor shafts benefit from 71811 ACD/P4 Bearing’s high-speed capabilities. The 25° contact angle effectively handles combined radial and axial loads.

In 3D printers, 71811 ACD/P4 Bearing contributes to precise linear motion control. Its compact size fits well in space-constrained designs without compromising performance.

Q&A

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