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Super Precision Angular Contact Ball Bearings S71911 ACDTP/HCP4B

Super Precision Angular Contact Ball Bearings S71911 ACDTP/HCP4B

The S71911 ACDTP/HCP4B is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, designed for high-speed applications. Its 25° contact angle and ceramic balls ensure smooth operation under radial loads up to 4095 lbf.

The sealed design keeps lubrication in and contaminants out, while the phenolic cage offers durability. With a maximum speed of 17000 RPM, it’s built for demanding tasks like machine tool spindles or high-performance motors.

This bearing meets P4 (ABEC-7) tolerance standards for exceptional accuracy. It’s interchangeable with SKF models, making replacements straightforward. Ideal for precision engineering where reliability and speed are key.

Weighing just 0.16kg, it’s lightweight yet robust, suitable for temperatures from -30°C to 110°C. A reliable choice for applications needing tight tolerances and long service life.

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Product Parameters

  • Part Number S71911 ACDTP/HCP4B
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 55 mm
  • Bore Dia Tolerance -0.007mm to 0
  • Outer Dia 80 mm
  • Outer Dia Tolerance -0.007mm to 0
  • Width 13 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 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 4095 lbf
  • Static Radial Load 3082 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 17000 rpm
  • Weight 0.16 kg
  • Price（$） 528.111
Super Precision Angular Contact Ball Bearings S71911 ACDTP/HCP4B dimension drawing
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Features

Performance Features of S71911 ACDTP/HCP4B Bearing

S71911 ACDTP/HCP4B Bearing is designed with a 25° contact angle, optimising load distribution for precision 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 17,000 rpm.
With a dynamic radial load capacity of 4095 lbf, it handles demanding tasks reliably.

S71911 ACDTP/HCP4B Bearing’s sealed design protects against contaminants, extending its service life.
Its P4 tolerance class guarantees consistent performance in precision machinery.

The lubricated design minimises maintenance needs, making it a practical choice.
Its compact size (55 mm×80 mm×13 mm) allows for efficient use in space-constrained applications.

Application

Ideal for Precision: S71911 ACDTP/HCP4B Bearing
S71911 ACDTP/HCP4B Bearing is widely used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction and heat buildup. The 25° contact angle ensures stable performance under combined radial and axial loads.

In robotics, S71911 ACDTP/HCP4B Bearing provides smooth motion control for articulated arms, thanks to its P4 tolerance class. The sealed design keeps contaminants out, extending service life in demanding environments.

For medical imaging devices, S71911 ACDTP/HCP4B Bearing’s precision and low vibration are crucial for accurate diagnostics. Its chrome steel rings and ceramic balls offer reliable performance in sensitive applications.

Automotive applications like electric vehicle motors benefit from S71911 ACDTP/HCP4B Bearing’s high-speed capability and minimal maintenance needs. The matched arrangement option further simplifies installation in compact spaces.

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