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Super Precision Angular Contact Ball Bearings S71911 CE/P4A

Super Precision Angular Contact Ball Bearings S71911 CE/P4A

The S71911 CE/P4A is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, designed for high-speed applications. It features a 15° contact angle and comes sealed for protection, with matched arrangement and preload options available.

Made from chrome steel with a phenolic cage, it handles dynamic radial loads up to 3510 lbf and spins smoothly at speeds up to 24,000 RPM. Its precision P4 tolerance ensures reliable performance in demanding conditions.

The sealed design keeps lubrication in and contaminants out, making it low-maintenance. Ideal for machine tools, spindles, or other high-precision equipment where accuracy and speed are key.

Weighing just 0.17kg, it’s lightweight yet robust. Compatible with SKF bearings for easy replacement, and operates in temperatures from -30°C to 110°C.

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Product Parameters

  • Part Number S71911 CE/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 55 mm
  • Bore Dia Tolerance -0.007mm to 0
  • Outer Dia 80 mm
  • Outer Dia Tolerance -0.007mm to 0
  • Width 13 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 21
  • Contact Angle 15°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement Available
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 3510 lbf
  • Static Radial Load 2385 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 24000 rpm
  • Weight 0.17 kg
  • Price（$） 528.219
Super Precision Angular Contact Ball Bearings S71911 CE/P4A dimension drawing
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Features

Why Choose S71911 CE/P4A Bearing for Precision Tasks?

S71911 CE/P4A Bearing features a 15° contact angle, ideal for handling combined radial and axial loads with high precision.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction for smoother operation.

With a dynamic radial load capacity of 3510 lbf, S71911 CE/P4A Bearing excels in demanding applications.
The P4 tolerance class guarantees exceptional accuracy, making it suitable for high-speed operations up to 24,000 rpm.

Sealed and preloaded options enhance performance, reducing maintenance needs.
S71911 CE/P4A Bearing operates efficiently in temperatures ranging from -30° to 110°C.

Application

Industrial Uses of S71911 CE/P4A Bearing
S71911 CE/P4A Bearing is commonly used in high-speed machine tools, where its precision angular contact design ensures accurate spindle rotation. The sealed construction helps maintain performance in environments with dust or debris.

Where Is S71911 CE/P4A Bearing Used?
You’ll often find S71911 CE/P4A Bearing in automotive transmissions, supporting smooth gear shifts with its 15° contact angle. Its phenolic cage reduces friction, making it ideal for high-speed applications.

Optimized for Performance: S71911 CE/P4A Bearing
In robotics, S71911 CE/P4A Bearing provides reliable motion control for articulated arms, thanks to its P4 tolerance class. The chrome steel construction ensures long-lasting durability under continuous use.

Medical vs Industrial: Where S71911 CE/P4A Bearing Excels
S71911 CE/P4A Bearing works well in medical imaging devices, offering quiet operation for sensitive environments. In industrial settings, it handles radial and axial loads efficiently in pumps and compressors.

Light-Duty vs Heavy-Duty: Best Uses for S71911 CE/P4A Bearing
For light-duty applications like dental drills, S71911 CE/P4A Bearing delivers precision without compromising speed. In heavy-duty scenarios, it supports grinding machines with consistent load distribution.

Q&A

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