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Super Precision Angular Contact Ball Bearings S71913 ACD/HCP4A

Super Precision Angular Contact Ball Bearings S71913 ACD/HCP4A

The S71913 ACD/HCP4A is a super precision angular contact ball bearing with a 65mm bore and 90mm outer diameter, crafted from chrome steel for durability. It handles radial loads up to 4388 lbf and reaches speeds of 15000 RPM, thanks to its ceramic balls and phenolic cage.

Its 25° contact angle and sealed design ensure smooth operation under angular loads, while the P4 tolerance class offers high precision. The bearing comes pre-lubricated and works in temperatures from -30°C to 110°C.

This model is interchangeable with SKF bearings and can be matched for paired arrangements. Ideal for high-speed applications like machine tool spindles or precision equipment where accuracy is key.

Weighing just 0.18kg, it’s lightweight yet robust. The sealed construction keeps contaminants out, extending its lifespan in demanding environments.

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Product Parameters

  • Part Number S71913 ACD/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 65 mm
  • Bore Dia Tolerance -0.007mm to 0
  • Outer Dia 90 mm
  • Outer Dia Tolerance -0.008mm to 0
  • Width 13 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 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 4388 lbf
  • Static Radial Load 3600 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 15000 rpm
  • Weight 0.18 kg
  • Price（$） 77.229
Super Precision Angular Contact Ball Bearings S71913 ACD/HCP4A dimension drawing
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Features

Performance Features of S71913 ACD/HCP4A Bearing

S71913 ACD/HCP4A Bearing is designed with a 25° contact angle, ideal for handling combined radial and axial loads.
Its chrome steel rings and ceramic balls reduce friction, enhancing precision in high-speed applications.
The phenolic cage ensures smooth operation, even at speeds up to 15,000 rpm.
With a dynamic radial load capacity of 4388 lbf, it delivers reliable performance in demanding conditions.

How Is S71913 ACD/HCP4A Bearing Engineered for Reliability?

S71913 ACD/HCP4A Bearing features a sealed design, protecting it from contaminants and extending its service life.
The ceramic balls and chrome steel rings work together to minimise wear, even under heavy loads.
Its P4 tolerance class ensures high precision, making it suitable for critical applications.
Lubrication is optimised to maintain smooth operation across a wide temperature range.

Built for Precision: S71913 ACD/HCP4A Bearing

S71913 ACD/HCP4A Bearing’s matched arrangement and preload options enhance its stability and accuracy.
The phenolic cage reduces vibration, contributing to quieter operation in precision instruments.
With a static radial load capacity of 3600 lbf, it handles demanding conditions effortlessly.
Its compact size (65 mm×90 mm×13 mm) makes it ideal for space-constrained applications.

Steel vs Ceramic Bearings: Strengths of S71913 ACD/HCP4A Bearing

S71913 ACD/HCP4A Bearing combines chrome steel rings with ceramic balls for superior performance.
This hybrid design reduces friction and heat generation, improving efficiency at high speeds.
The ceramic balls also resist wear better than traditional steel balls, extending the bearing’s life.
Its sealed construction further enhances durability by keeping out dust and moisture.

Application

Ideal for Precision: S71913 ACD/HCP4A Bearing
S71913 ACD/HCP4A Bearing is commonly used in high-speed machine tools, where its angular contact design ensures accurate spindle rotation. The ceramic balls reduce friction, making it suitable for applications requiring smooth operation.

In robotics, S71913 ACD/HCP4A Bearing supports articulated arms, providing stability during precise movements. Its sealed design helps keep contaminants out, extending service life in demanding environments.

For medical imaging devices, S71913 ACD/HCP4A Bearing’s phenolic cage offers quiet performance, essential for sensitive equipment. The P4 tolerance class ensures consistent reliability in critical applications.

Automotive vs Aerospace: Applications of S71913 ACD/HCP4A Bearing
In automotive systems, S71913 ACD/HCP4A Bearing enhances performance in electric motor shafts, thanks to its high-speed capability. The angular contact design efficiently handles combined loads.

Aerospace applications benefit from S71913 ACD/HCP4A Bearing’s lightweight construction and precision. Its ceramic balls and phenolic cage reduce weight while maintaining durability in extreme conditions.

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