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Super Precision Angular Contact Ball Bearings 71811 ACDGA/P4

Super Precision Angular Contact Ball Bearings 71811 ACDGA/P4

The 71811 ACDGA/P4 is a super precision angular contact ball bearing with a 55mm bore and 72mm outer diameter, crafted from durable chrome steel. Its slim 9mm width makes it suitable for compact spaces while maintaining high performance.

With a 25° contact angle, it handles both radial and axial loads efficiently, supporting up to 2151 lbf dynamically. It spins smoothly at speeds up to 34,000 RPM, ideal for high-speed applications.

The open design and phenolic cage ensure low friction and easy maintenance. It operates reliably in temperatures from -30°C to 110°C, making it versatile for various environments.

This bearing is part of a universal matching set, allowing flexible arrangements like back-to-back or face-to-face. Perfect for precision machinery, spindles, or high-speed tools where accuracy is key. Weighing just 0.081kg, it’s lightweight yet robust.

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Product Parameters

  • Part Number 71811 ACDGA/P4
  • 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 9 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 4.762 mm
  • Ball Qty 29
  • Contact Angle 25°
  • Tolerance Class P4
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 4
  • 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 2151 lbf
  • Static Radial Load 2295 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.081 kg
  • Price（$） 67.527
Super Precision Angular Contact Ball Bearings 71811 ACDGA/P4 dimension drawing
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Features

Performance Features of 71811 ACDGA/P4 Bearing

71811 ACDGA/P4 Bearing is crafted with a 25° contact angle, optimising load distribution for angular contact applications.

Its chrome steel rings and balls enhance durability, while the phenolic cage ensures smooth operation at high speeds.

With a dynamic radial load capacity of 2151 lbf, it handles demanding conditions reliably.

The P4 tolerance class guarantees precision, making it suitable for high-performance machinery.

Application

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

Where Is 71811 ACDGA/P4 Bearing Used?
You’ll often find 71811 ACDGA/P4 Bearing in automotive transmissions, supporting smooth gear shifts with its extra light preload. Its phenolic cage reduces friction, making it ideal for high-speed applications.

Built for Heavy-Duty Use: 71811 ACDGA/P4 Bearing
71811 ACDGA/P4 Bearing handles radial loads effortlessly in industrial pumps, thanks to its chrome steel construction. The P4 tolerance class ensures consistent performance even under heavy use.

Automotive vs Aerospace: Applications of 71811 ACDGA/P4 Bearing
In automotive systems, 71811 ACDGA/P4 Bearing excels in wheel hubs, while its aerospace applications include flight control systems. The universal matching feature allows flexible mounting options.

Perfect Fit for Automation: 71811 ACDGA/P4 Bearing
71811 ACDGA/P4 Bearing is a reliable choice for robotic arms, offering smooth motion with its 25° contact angle. Its high-speed capability makes it suitable for precision automation tasks.

Q&A

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