Super Precision Angular Contact Ball Bearings 71909 ACD/HCP4ADBA

Super Precision Angular Contact Ball Bearings 71909 ACD/HCP4ADBA

The 71909 ACD/HCP4ADBA is a super precision angular contact ball bearing with a 45mm bore and 68mm outer diameter, designed for high-speed applications. It features a 25° contact angle and comes in a matched pair for extra stability.

Made from chrome steel with ceramic balls and a phenolic cage, it handles radial loads up to 4478 lbf and spins smoothly at speeds up to 41,000 RPM. The open design allows for easy lubrication and maintenance.

With an extra light preload (Class A), this bearing offers precise performance in demanding conditions. It operates well in temperatures from -30°C to 110°C, making it suitable for machine tools or high-speed spindles.

Weighing just 0.24kg, this P4A tolerance bearing is interchangeable with SKF models, providing a reliable replacement option. Ideal for applications requiring high precision and speed.

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Product Parameters

  • Part Number 71909 ACD/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 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • 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 4478 lbf
  • Static Radial Load 4050 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 0.24 kg

Features

Why Choose 71909 ACD/HCP4ADBA Bearing for Precision Tasks?

71909 ACD/HCP4ADBA Bearing features a 25° contact angle, ideal for handling combined radial and axial loads.
Its ceramic balls and chrome steel rings ensure smooth operation with minimal friction.
The phenolic cage maintains ball alignment, enhancing precision in high-speed applications.
With a maximum speed of 41,000 rpm, it excels in demanding environments.

How Is 71909 ACD/HCP4ADBA Bearing Engineered for Reliability?

71909 ACD/HCP4ADBA Bearing is designed with an extra light preload, reducing vibration and improving accuracy.
The matched arrangement of two bearings ensures balanced performance under angular contact loads.
Its P4A tolerance class guarantees high precision, making it suitable for critical applications.
The lubricated design further enhances its reliability and longevity.

What Makes 71909 ACD/HCP4ADBA Bearing Suitable for High-Temperature Applications?

71909 ACD/HCP4ADBA Bearing operates efficiently in temperatures ranging from -30°C to 110°C.
The ceramic balls and phenolic cage resist thermal expansion, maintaining performance under heat.
Its open seal type allows for effective heat dissipation, preventing overheating.
This makes it a dependable choice for high-temperature environments.

Application

Key Fields for 71909 ACD/HCP4ADBA Bearing
71909 ACD/HCP4ADBA Bearing is commonly used in high-speed machine tools, where its precision and ceramic balls reduce friction for smoother operation. The matched arrangement ensures stability in demanding industrial environments.

In robotics, 71909 ACD/HCP4ADBA Bearing supports articulated arms, providing the accuracy needed for repetitive tasks. Its phenolic cage offers lightweight durability, ideal for automated systems.

For medical imaging devices, 71909 ACD/HCP4ADBA Bearing’s P4A tolerance class ensures consistent performance. The open design allows for easy lubrication, extending service life in critical applications.

Automotive applications like electric motor shafts benefit from 71909 ACD/HCP4ADBA Bearing’s angular contact design. The extra light preload minimises energy loss, enhancing efficiency in hybrid vehicles.

In aerospace components, 71909 ACD/HCP4ADBA Bearing handles radial and axial loads with reliability. Its temperature range suits both cockpit instruments and engine-adjacent systems.

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