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Super Precision Angular Contact Ball Bearings S71909 ACD/HCP4A

Super Precision Angular Contact Ball Bearings S71909 ACD/HCP4A

The S71909 ACD/HCP4A is a super precision angular contact ball bearing with a 45mm bore and 68mm outer diameter, crafted from durable chrome steel. Its compact 12mm width makes it suitable for tight spaces while handling radial loads up to 2790 lbf.

With a 25° contact angle and ceramic balls, it offers smooth rotation at speeds up to 20,000 RPM. The sealed design keeps lubrication in place, reducing maintenance needs.

This bearing comes preloaded and matched for precision applications, meeting P4 tolerance standards. Ideal for high-speed machinery like spindles or robotics where accuracy is key.

Weighing just 0.12kg, it’s lightweight yet robust. It operates reliably in temperatures from -30°C to 110°C, making it versatile for various industrial uses.

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Product Parameters

  • Part Number S71909 ACD/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 45 mm
  • Bore Dia Tolerance -0.006mm to 0
  • Outer Dia 68 mm
  • Outer Dia Tolerance -0.007mm to 0
  • Width 12 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 6.35 mm
  • Ball Qty 23
  • Contact Angle 25°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement Available
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 2790 lbf
  • Static Radial Load 2025 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 20000 rpm
  • Weight 0.12 kg
  • Price（$） 389.349
Super Precision Angular Contact Ball Bearings S71909 ACD/HCP4A dimension drawing
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Features

Why Choose S71909 ACD/HCP4A Bearing for Precision Tasks?

S71909 ACD/HCP4A Bearing features a 25° contact angle, ideal for handling combined radial and axial loads with precision.
Its ceramic balls and chrome steel rings ensure smooth operation, even at high speeds up to 20,000 rpm.
The phenolic cage minimises friction and wear, enhancing the bearing’s longevity.
With a P4 tolerance class, it delivers consistent performance in demanding applications.

Application

Key Fields for S71909 ACD/HCP4A Bearing
S71909 ACD/HCP4A Bearing is commonly used in high-speed machine tools, where its precision and angular contact design ensure accurate performance. The ceramic balls reduce friction, making it ideal for applications demanding smooth rotation.

In robotics, S71909 ACD/HCP4A Bearing supports articulated arms, providing stability and durability in repetitive motions. Its sealed design helps keep contaminants out, extending service life in demanding environments.

For medical imaging devices, S71909 ACD/HCP4A Bearing’s phenolic cage and chrome steel rings offer reliable operation. The P4 tolerance class ensures minimal vibration, crucial for sensitive equipment.

Automotive applications like electric vehicle motors benefit from S71909 ACD/HCP4A Bearing’s high-speed capability. The matched arrangement option allows for custom setups, enhancing flexibility in design.

In aerospace systems, S71909 ACD/HCP4A Bearing handles both radial and axial loads efficiently. Its lightweight construction and high-temperature tolerance make it suitable for critical flight components.

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