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Super Precision Angular Contact Ball Bearings 71811 CD/P4DGA

Super Precision Angular Contact Ball Bearings 71811 CD/P4DGA

The 71811 CD/P4DGA is a super precision angular contact ball bearing with a 55mm bore and 72mm outer diameter, crafted from high-quality chrome steel. It features a 15° contact angle and is designed for angular contact loads, handling up to 3780 lbf dynamically.

Its open design and phenolic cage ensure smooth operation at speeds up to 34,000 RPM, making it suitable for high-performance applications. The bearing comes pre-lubricated and can withstand temperatures from -30°C to 110°C.

This model is part of a matched set, allowing universal mounting in back-to-back, face-to-face, or tandem configurations. Ideal for precision machinery like spindles or CNC equipment where accuracy is key.

Weighing just 0.16kg, it offers a lightweight yet durable solution. Compliant with P4 tolerance standards, it ensures reliable performance in demanding conditions.

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Product Parameters

  • Part Number 71811 CD/P4DGA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 55 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 72 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 18 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 4.762 mm
  • Ball Qty 29
  • Contact Angle 15°
  • 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 3780 lbf
  • Static Radial Load 4860 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.16 kg
Super Precision Angular Contact Ball Bearings 71811 CD/P4DGA dimension drawing
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Features

Performance Features of 71811 CD/P4DGA Bearing

71811 CD/P4DGA Bearing is crafted with chrome steel rings and balls, offering high precision and durability.
Its 15° contact angle ensures efficient handling of combined radial and axial loads.

The phenolic cage maintains ball alignment, reducing friction and enhancing performance.
With a dynamic radial load capacity of 3780 lbf, it suits demanding applications.

Designed for extra light preload, 71811 CD/P4DGA Bearing operates smoothly at speeds up to 34,000 rpm.
Its universal matching allows flexible arrangement in back-to-back, face-to-face, or tandem configurations.

The open seal design simplifies lubrication, ensuring consistent performance.
It functions reliably within a temperature range of -30°C to 110°C.

Application

Essential Roles of 71811 CD/P4DGA Bearing
71811 CD/P4DGA Bearing is commonly used in high-precision machine tools, where its 15° contact angle ensures accurate spindle rotation. The universal matching feature allows flexible arrangements, making it suitable for complex setups.

In robotics, 71811 CD/P4DGA Bearing provides smooth motion control for articulated arms, thanks to its extra-light preload and phenolic cage. Its high-speed capability (up to 34,000 rpm) supports dynamic automation tasks.

For medical imaging devices like MRI scanners, 71811 CD/P4DGA Bearing’s P4 tolerance class guarantees minimal vibration. The chrome steel construction ensures long-term reliability in critical healthcare environments.

Automotive testing equipment often relies on 71811 CD/P4DGA Bearing for its consistent performance under radial loads. The matched set design simplifies installation in tandem or back-to-back configurations.

In aerospace applications, 71811 CD/P4DGA Bearing handles precise angular loads in navigation systems. Its temperature range (-30°C to 110°C) accommodates varying operational conditions.

Q&A

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