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Super Precision Angular Contact Ball Bearings S71920 CD/P4AQBCC

Super Precision Angular Contact Ball Bearings S71920 CD/P4AQBCC

The S71920 CD/P4AQBCC is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from high-quality chrome steel. It features a 15° contact angle and comes sealed for protection, with a phenolic cage for durability.

This bearing handles dynamic radial loads up to 35775 lbf and operates smoothly at speeds up to 16250 RPM. Its moderate preload (Class C) ensures stable performance in demanding applications.

Designed as part of a matched set of four bearings (QBC arrangement), it offers consistent precision. Ideal for high-speed machinery like spindles or CNC equipment where accuracy is crucial.

Weighing 3.25kg, it’s robust yet manageable. Compliant with P4A tolerance standards, it works reliably in temperatures from -30°C to 110°C. Grease-lubricated for low maintenance.

Interchangeable with SKF bearings, making replacements straightforward. Suitable for industrial uses requiring tight tolerances and smooth operation.

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Product Parameters

  • Part Number S71920 CD/P4AQBCC
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 100 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 140 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 80 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 12.7 mm
  • Ball Qty 26
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement 4 bearings <<>> QBC
  • Number Of Bearings In Matched Set 4
  • Universal Matching Bearing No
  • Preload Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 35775 lbf
  • Static Radial Load 59625 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16250 rpm
  • Weight 3.25 kg
Super Precision Angular Contact Ball Bearings S71920 CD/P4AQBCC dimension drawing
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Features

How Does S71920 CD/P4AQBCC Bearing Ensure Precision Performance?

S71920 CD/P4AQBCC Bearing features a 15° contact angle, optimised for high-precision angular contact applications.
Its chrome steel rings and balls provide strong resistance to radial loads, with a dynamic capacity of 35,775 lbf.

The phenolic cage maintains ball alignment, reducing friction and enhancing durability.
With a maximum speed of 16,250 rpm, it delivers smooth operation in demanding conditions.

S71920 CD/P4AQBCC Bearing comes preloaded for moderate stiffness, ensuring consistent performance.
Its sealed design and grease lubrication minimise maintenance needs while extending service life.

The P4A tolerance class guarantees tight dimensional control for precision applications.
Four matched bearings in a set (QBC arrangement) provide balanced load distribution.

Application

Common Applications of S71920 CD/P4AQBCC Bearing
S71920 CD/P4AQBCC Bearing is widely used in high-precision machine tools, where its moderate preload and sealed design ensure consistent performance. The phenolic cage reduces friction, making it suitable for high-speed operations.

In robotics, S71920 CD/P4AQBCC Bearing supports articulated arms, providing smooth movement and durability. Its angular contact design handles combined loads effectively, ideal for repetitive tasks.

For medical imaging devices, S71920 CD/P4AQBCC Bearing’s chrome steel construction offers reliability in critical applications. The P4A tolerance class ensures minimal vibration, crucial for precise diagnostics.

In aerospace systems, S71920 CD/P4AQBCC Bearing’s grease lubrication and temperature range make it adaptable to varying conditions. Its matched arrangement enhances stability in flight control mechanisms.

Q&A

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