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Super Precision Angular Contact Ball Bearings 71911 CDGA/P4A

Super Precision Angular Contact Ball Bearings 71911 CDGA/P4A

The 71911 CDGA/P4A is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, crafted from durable chrome steel. It features a 15° contact angle and is designed for high-speed operations up to 34,000 RPM.

Its open design and phenolic cage ensure smooth performance, while the extra light preload (Class A) minimises friction. The bearing handles dynamic radial loads up to 4388 lbf and static radial loads up to 3285 lbf.

This model is interchangeable with SKF bearings and can be used in matched sets for back-to-back, face-to-face, or tandem arrangements. Ideal for precision applications like machine tool spindles or high-speed robotics.

Weighing just 0.18kg, it operates efficiently in temperatures from -30°C to 110°C. Its universal matching capability makes it versatile for various configurations.

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Product Parameters

  • Part Number 71911 CDGA/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 55 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 80 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 13 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 23
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 3
  • 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 4388 lbf
  • Static Radial Load 3285 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.18 kg
  • Price（$） 19.26
Super Precision Angular Contact Ball Bearings 71911 CDGA/P4A dimension drawing
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Features

Performance Features of 71911 CDGA/P4A Bearing

71911 CDGA/P4A Bearing is crafted with a 15° contact angle, ideal for handling combined radial and axial loads.

Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction for smoother operation.

With a dynamic radial load capacity of 4388 lbf, it performs reliably in high-speed applications.

The P4A tolerance class guarantees precision, making it suitable for demanding industrial uses.

Application

Industrial Uses of 71911 CDGA/P4A Bearing
71911 CDGA/P4A Bearing is commonly used in high-speed machine tools, where its precision and angular contact design ensure accurate performance. The open seal type allows for efficient lubrication, extending its lifespan in demanding conditions.

In automotive applications, 71911 CDGA/P4A Bearing supports components like electric motors and gear systems, providing reliable angular load handling. Its chrome steel construction offers durability, making it suitable for long-term use.

For automation systems, 71911 CDGA/P4A Bearing is ideal for robotic arms and CNC machines, where its extra light preload ensures smooth movement. The phenolic cage adds stability, reducing friction during high-speed operations.

Medical equipment benefits from 71911 CDGA/P4A Bearing’s precision, particularly in imaging devices and surgical tools. The P4A tolerance class guarantees consistent performance, crucial for sensitive medical applications.

In consumer electronics, 71911 CDGA/P4A Bearing can be found in high-performance printers and precision instruments. Its compact size and reliable design make it a practical choice for devices requiring quiet and efficient operation.

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