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Super Precision Angular Contact Ball Bearings S71911 CB/P4A

Super Precision Angular Contact Ball Bearings S71911 CB/P4A

The S71911 CB/P4A is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 2239 lbf and operates smoothly at speeds up to 22,000 RPM.

Its sealed design keeps lubrication in and contaminants out, while the phenolic cage ensures quiet, long-lasting performance. The 15° contact angle provides excellent stability for angular loads.

This bearing is available with preload and matched arrangements, making it ideal for high-precision applications like machine tool spindles or robotics. It meets P4 tolerance standards for exceptional accuracy.

Weighing just 0.19kg, it’s lightweight yet robust. Compatible with SKF bearings, it’s a reliable choice for replacements or upgrades in demanding environments.

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Product Parameters

  • Part Number S71911 CB/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 5.556 mm
  • Ball Qty 28
  • 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 2239 lbf
  • Static Radial Load 1834 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 22000 rpm
  • Weight 0.19 kg
  • Price（$） 527.571
Super Precision Angular Contact Ball Bearings S71911 CB/P4A dimension drawing
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Features

Why Choose S71911 CB/P4A Bearing for Precision Tasks?

S71911 CB/P4A Bearing features a 15° contact angle, optimised for high-precision angular contact applications.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction for smoother operation.

With a dynamic radial load capacity of 2239 lbf, S71911 CB/P4A Bearing handles demanding tasks reliably.
The P4 tolerance class guarantees exceptional precision, making it suitable for high-speed applications up to 22,000 rpm.

S71911 CB/P4A Bearing comes pre-lubricated, reducing maintenance needs and ensuring consistent performance.
Its sealed design protects against contaminants, extending service life in various environments.

Application

Key Fields for S71911 CB/P4A Bearing
S71911 CB/P4A Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The sealed construction helps maintain performance in environments with dust or debris.

In automotive applications, S71911 CB/P4A Bearing supports components like wheel hubs and transmissions, offering reliable angular load handling. Its phenolic cage provides stability under high-speed conditions, making it suitable for performance vehicles.

For medical imaging devices, S71911 CB/P4A Bearing’s precision and low friction contribute to smooth operation. The chrome steel construction ensures durability in critical healthcare equipment.

Automation systems benefit from S71911 CB/P4A Bearing’s matched arrangement, which enhances alignment in robotic arms. The P4 tolerance class guarantees consistent performance in repetitive tasks.

In consumer electronics, S71911 CB/P4A Bearing is found in high-end printers, where its quiet operation and longevity are valued. The lubricated design reduces maintenance needs for home and office use.

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