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Super Precision Angular Contact Ball Bearings 71811 CD/P4QGB

Super Precision Angular Contact Ball Bearings 71811 CD/P4QGB

The 71811 CD/P4QGB is a super precision angular contact ball bearing with a 55mm bore and 72mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 6075 lbf and operates smoothly at speeds up to 34,000 RPM.

Its 15° contact angle and universal matching design allow flexible arrangements like back-to-back or face-to-face. The phenolic cage ensures quiet performance and long service life.

This bearing is preloaded for light applications and works in temperatures from -30°C to 110°C. Ideal for high-precision machinery like spindles or CNC equipment where accuracy is key.

Weighing 0.32kg, it comes in matched sets of four for consistent performance. Compliant with P4 tolerance standards for reliable operation.

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Product Parameters

  • Part Number 71811 CD/P4QGB
  • 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 36 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 4
  • 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 6075 lbf
  • Static Radial Load 9675 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.32 kg
Super Precision Angular Contact Ball Bearings 71811 CD/P4QGB dimension drawing
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Features

Performance Features of 71811 CD/P4QGB Bearing

71811 CD/P4QGB 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 6075 lbf, it suits demanding applications.

71811 CD/P4QGB Bearing operates smoothly at speeds up to 34,000 rpm.
Its universal matching design allows flexible arrangements like back-to-back or face-to-face.

The P4 tolerance class guarantees exceptional precision for critical tasks.
Light preload ensures optimal performance without excessive friction.

Application

Common Applications of 71811 CD/P4QGB Bearing
71811 CD/P4QGB Bearing is widely used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The universal matching feature allows for flexible arrangements, making it suitable for complex setups.

In robotics, 71811 CD/P4QGB Bearing supports articulated arms, providing smooth movement and low friction. Its phenolic cage material helps reduce weight while maintaining strength, ideal for repetitive motions.

For aerospace applications, 71811 CD/P4QGB Bearing handles both radial and axial loads in components like landing gear systems. The P4 tolerance class ensures reliability under demanding conditions.

Automotive enthusiasts appreciate 71811 CD/P4QGB Bearing in performance gearboxes, where its light preload enhances shifting precision. The chrome steel construction also extends service life in high-speed scenarios.

In medical imaging devices, 71811 CD/P4QGB Bearing offers quiet operation, crucial for patient comfort. Its lubricated design minimises maintenance needs in sensitive environments.

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