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Super Precision Angular Contact Ball Bearings S71909 CD/P4ADBC

Super Precision Angular Contact Ball Bearings S71909 CD/P4ADBC

The S71909 CD/P4ADBC is a super precision angular contact ball bearing, measuring 45mm by 68mm by 24mm, crafted from durable chrome steel. It features a 15° contact angle and comes sealed for protection, with two bearings matched in a DB arrangement.

This bearing handles radial loads up to 4770 lbf and spins smoothly at speeds up to 46,000 RPM. Its phenolic cage ensures quiet operation, while the moderate preload (Class C) offers balanced performance.

The sealed design keeps grease in and contaminants out, making it low-maintenance. Ideal for high-precision applications like machine tool spindles or robotics, where accuracy and reliability are key.

Weighing just 0.27kg, it’s lightweight yet robust. Compliant with P4A tolerance standards, it’s interchangeable with SKF bearings for easy replacements. Works well in temperatures from -30°C to 110°C.

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Product Parameters

  • Part Number S71909 CD/P4ADBC
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 45 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 68 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 24 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 6.35 mm
  • Ball Qty 23
  • 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 4770 lbf
  • Static Radial Load 4275 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 46000 rpm
  • Weight 0.27 kg
Super Precision Angular Contact Ball Bearings S71909 CD/P4ADBC dimension drawing
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Features

How Is S71909 CD/P4ADBC Bearing Engineered for Reliability?

S71909 CD/P4ADBC Bearing features a 15° contact angle, optimised for handling combined radial and axial loads.
The chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and wear.

With a dynamic radial load capacity of 4770 lbf, it performs reliably under demanding conditions.
Its sealed design and grease lubrication minimise maintenance, extending service life.

The P4A tolerance class guarantees high precision, suitable for applications requiring tight tolerances.
Operating at speeds up to 46,000 rpm, it balances performance and longevity.

Application

Industrial Uses of S71909 CD/P4ADBC Bearing
S71909 CD/P4ADBC Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate alignment under radial and axial loads. The sealed construction keeps contaminants out, extending service life in demanding environments.

In automotive applications, S71909 CD/P4ADBC Bearing supports high-speed components like turbochargers and electric motors. Its moderate preload and phenolic cage contribute to smooth, vibration-free operation.

For medical imaging devices, S71909 CD/P4ADBC Bearing’s chrome steel construction and P4A tolerance class provide the reliability needed for precise movements. The matched bearing arrangement further enhances stability in critical applications.

Automation & robotics benefit from S71909 CD/P4ADBC Bearing’s ability to handle combined loads in robotic arms and CNC systems. The grease lubrication ensures consistent performance even at high speeds.

In aerospace systems, S71909 CD/P4ADBC Bearing’s lightweight design and high-speed capability make it suitable for avionics and flight control mechanisms. The temperature range also accommodates varying operational conditions.

Q&A

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