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Super Precision Angular Contact Ball Bearings S71918 ACD/HCP4A

Super Precision Angular Contact Ball Bearings S71918 ACD/HCP4A

The S71918 ACD/HCP4A is a super precision angular contact ball bearing with a 90mm bore and 125mm outer diameter, crafted from chrome steel for durability. Its 25° contact angle and ceramic balls ensure smooth operation under high radial loads up to 9945 lbf.

Sealed and preloaded, this bearing maintains performance at speeds up to 10,000 RPM, making it suitable for high-speed applications. The phenolic cage adds stability while keeping weight low at just 0.48kg.

Designed for precision machinery, it excels in applications like CNC spindles or high-performance motors. Its P4 tolerance class (ABEC-7) guarantees consistent accuracy.

With interchangeable options like SKF, it’s a reliable choice for replacements. The bearing operates efficiently in temperatures from -30°C to 110°C, ensuring versatility in various environments.

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Product Parameters

  • Part Number S71918 ACD/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 90 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 125 mm
  • Outer Dia Tolerance -0.009mm to 0
  • Width 18 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 11.112 mm
  • Ball Qty 26
  • 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 9945 lbf
  • Static Radial Load 10800 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 10000 rpm
  • Weight 0.48 kg
  • Price（$） 122.391
Super Precision Angular Contact Ball Bearings S71918 ACD/HCP4A dimension drawing
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Features

Why Choose S71918 ACD/HCP4A Bearing for Precision Tasks?

S71918 ACD/HCP4A Bearing features a 25° contact angle, ideal for handling combined radial and axial loads with high precision.
Its ceramic balls and chrome steel rings ensure smooth operation, even at speeds up to 10,000 rpm.
The phenolic cage provides excellent heat resistance, maintaining stability in varied temperature conditions.
With a P4 tolerance class, it delivers consistent performance for demanding applications.

Application

Key Fields for S71918 ACD/HCP4A Bearing
S71918 ACD/HCP4A Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The ceramic balls reduce friction, making it ideal for high-speed operations.

Where Is S71918 ACD/HCP4A Bearing Used?
In automotive applications, S71918 ACD/HCP4A Bearing supports components like turbochargers and electric motors, thanks to its sealed design and phenolic cage. The P4 tolerance class ensures consistent performance under demanding conditions.

Built for Heavy-Duty Use: S71918 ACD/HCP4A Bearing
For robotics and automation, S71918 ACD/HCP4A Bearing provides reliable angular load handling in robotic arms and CNC machines. Its matched arrangement option allows for customised preload settings.

Medical vs Industrial: Where S71918 ACD/HCP4A Bearing Excels
In medical imaging devices, S71918 ACD/HCP4A Bearing’s chrome steel rings and ceramic balls offer quiet, smooth operation. Industrial pumps benefit from its high dynamic radial load capacity and lubricated design.

Q&A

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