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Super Precision Angular Contact Ball Bearings S71909 CD/HCP4ADBA

Super Precision Angular Contact Ball Bearings S71909 CD/HCP4ADBA

The S71909 CD/HCP4ADBA is a super precision angular contact ball bearing with a 45mm bore and 68mm outer diameter, crafted from durable chrome steel and ceramic balls. It handles radial loads up to 4770 lbf and spins smoothly at high speeds up to 46,000 RPM.

Its sealed design keeps grease in and contaminants out, while the phenolic cage ensures quiet, long-lasting performance. The 15° contact angle and extra-light preload make it ideal for precise, high-speed applications.

This matched pair of bearings (DB arrangement) offers excellent stability and load distribution. Perfect for machine tools, spindles, or any application requiring tight tolerances and smooth operation.

Weighing just 0.24kg, it’s lightweight yet robust. Compliant with P4A tolerance standards, it’s a reliable choice for demanding environments.

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Product Parameters

  • Part Number S71909 CD/HCP4ADBA
  • 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 Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • 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 0.24 kg
Super Precision Angular Contact Ball Bearings S71909 CD/HCP4ADBA dimension drawing
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Features

Performance Features of S71909 CD/HCP4ADBA Bearing

S71909 CD/HCP4ADBA Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and ceramic balls enhance durability while reducing friction.

The phenolic cage ensures smooth operation, even at high speeds up to 46,000 rpm.
With a dynamic radial load capacity of 4770 lbf, it handles demanding conditions reliably.

S71909 CD/HCP4ADBA Bearing comes pre-greased, reducing maintenance needs and ensuring long service life.
Its sealed design protects against contaminants, making it suitable for precision tasks.

The matched arrangement of two bearings provides extra stability and performance.
Its P4A tolerance class guarantees high precision in critical applications.

Application

Key Fields for S71909 CD/HCP4ADBA Bearing
S71909 CD/HCP4ADBA Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The ceramic balls and phenolic cage reduce friction, making it suitable for high-speed operations.

In aerospace applications, S71909 CD/HCP4ADBA Bearing supports critical components like turbine shafts, thanks to its extra-light preload and sealed design. The P4A tolerance class guarantees consistent performance under demanding conditions.

For automation systems, S71909 CD/HCP4ADBA Bearing excels in robotic arms and CNC machines, where its matched arrangement enhances stability. The grease lubrication ensures long service life even in continuous operation.

Medical imaging devices benefit from S71909 CD/HCP4ADBA Bearing’s quiet and smooth operation, essential for precise diagnostics. The chrome steel rings provide durability in sterile environments.

In electric motors, S71909 CD/HCP4ADBA Bearing’s high-speed capability and low heat generation improve efficiency. The metric dimensions make it a versatile choice for various motor designs.

Q&A

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