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Super Precision Angular Contact Ball Bearings 71811 CDGB/P4

Super Precision Angular Contact Ball Bearings 71811 CDGB/P4

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

With a 15° contact angle, it handles both radial and thrust loads efficiently, supporting up to 2272 lbf dynamically. It spins smoothly at high speeds, reaching up to 34,000 RPM.

The open design allows easy lubrication, while the phenolic cage ensures quiet operation. It’s part of a universal matching set, suitable for back-to-back, face-to-face, or tandem arrangements.

Ideal for precision applications like machine tool spindles or high-speed robotics. Compliant with P4 tolerance standards for exceptional accuracy. Weighing just 0.081kg, it’s lightweight yet robust.

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Product Parameters

  • Part Number 71811 CDGB/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 15°
  • Tolerance Class P4
  • 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 Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 2272 lbf
  • Static Radial Load 2430 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.081 kg
Super Precision Angular Contact Ball Bearings 71811 CDGB/P4 dimension drawing
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Features

Performance Features of 71811 CDGB/P4 Bearing

71811 CDGB/P4 Bearing is crafted with chrome steel rings and balls, offering excellent resistance to radial and angular loads.
Its dynamic radial load capacity of 2272 lbf ensures reliable performance in precision applications.

The phenolic cage maintains ball alignment, reducing friction and enhancing durability.
With a maximum speed of 34,000 rpm, it delivers smooth operation in high-speed scenarios.

71811 CDGB/P4 Bearing operates efficiently in temperatures ranging from -30°C to 110°C.
Its P4 tolerance class guarantees high precision, making it suitable for demanding tasks.

The open design allows for easy lubrication, ensuring consistent performance over time.
Light preload class B ensures optimal contact angle stability during operation.

Application

Industrial Uses of 71811 CDGB/P4 Bearing
71811 CDGB/P4 Bearing is commonly used in high-speed machine spindles, where its precision angular contact design ensures accurate rotation. The phenolic cage reduces friction, making it suitable for continuous operation.

Where Is 71811 CDGB/P4 Bearing Used?
You’ll find 71811 CDGB/P4 Bearing in CNC machining centres, particularly for tasks requiring tight tolerances. Its light preload helps maintain stability during high-speed cutting operations.

Built for Heavy-Duty Use: 71811 CDGB/P4 Bearing
71811 CDGB/P4 Bearing handles radial and axial loads in industrial gearboxes, thanks to its chrome steel construction. The open design allows for efficient lubrication, extending service life.

Automotive vs Aerospace: Applications of 71811 CDGB/P4 Bearing
In automotive systems, 71811 CDGB/P4 Bearing supports turbocharger shafts, while in aerospace, it’s used in instrumentation due to its P4 tolerance class. Both benefit from its high-speed capability.

Perfect Fit for Automation: 71811 CDGB/P4 Bearing
71811 CDGB/P4 Bearing is ideal for robotic arms, where its 15° contact angle provides smooth movement. The matched bearing sets offer flexibility in complex assembly configurations.

Q&A

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