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Super Precision Angular Contact Ball Bearings S71920 CD/P4ADBC

Super Precision Angular Contact Ball Bearings S71920 CD/P4ADBC

The S71920 CD/P4ADBC is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, designed for high-performance applications. Made from chrome steel, it handles radial loads up to 21938 lbf and reaches speeds of 16250 RPM.

Its 15° contact angle and sealed design ensure smooth operation and protection against contaminants. The phenolic cage offers durability, while the moderate preload (Class C) enhances stability in matched pairs.

This bearing is ideal for machine tools or spindles where precision and reliability are key. It comes as a set of two bearings (DB arrangement) and is interchangeable with SKF models. Compliant with P4A tolerance standards, it operates in temperatures from -30°C to 110°C.

Weighing 1.63kg, it’s a robust choice for industrial settings requiring tight tolerances and consistent performance. Grease lubrication simplifies maintenance for long service life.

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Product Parameters

  • Part Number S71920 CD/P4ADBC
  • 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 40 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 2 bearings <> DB
  • Number Of Bearings In Matched Set 2
  • 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 21938 lbf
  • Static Radial Load 29700 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16250 rpm
  • Weight 1.63 kg
Super Precision Angular Contact Ball Bearings S71920 CD/P4ADBC dimension drawing
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Features

Why Choose S71920 CD/P4ADBC Bearing for Precision Tasks?

S71920 CD/P4ADBC Bearing features a 15° contact angle, optimised for high-precision angular contact applications.
The phenolic cage ensures smooth operation and reduces friction, enhancing performance in demanding conditions.

With a dynamic radial load capacity of 21938 lbf, S71920 CD/P4ADBC Bearing handles heavy loads reliably.
Its sealed design and grease lubrication minimise maintenance while extending service life.

S71920 CD/P4ADBC Bearing operates efficiently at speeds up to 16,250 rpm, balancing speed and durability.
The chrome steel construction resists wear, making it suitable for long-term use in precision machinery.

Application

Industrial Uses of S71920 CD/P4ADBC Bearing
S71920 CD/P4ADBC Bearing is commonly used in high-precision machine tools, where its moderate preload and sealed design ensure consistent performance. The angular contact design handles both radial and axial loads efficiently, making it suitable for spindle applications.

In automotive systems, S71920 CD/P4ADBC Bearing supports high-speed components like turbochargers and electric motors. Its phenolic cage reduces friction, enhancing durability in demanding conditions.

For automation equipment, S71920 CD/P4ADBC Bearing’s matched arrangement provides stability in robotic arms and CNC machines. The P4A tolerance class ensures precise movement, crucial for repetitive tasks.

Medical imaging devices benefit from S71920 CD/P4ADBC Bearing’s grease lubrication and chrome steel construction. The sealed design keeps contaminants out, maintaining reliability in sterile environments.

In consumer electronics, S71920 CD/P4ADBC Bearing is found in high-end printers and scanners. Its compact size and high-speed capability make it ideal for space-constrained applications.

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