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Super Precision Angular Contact Ball Bearings 71918 ACD/HCP4ADBC

Super Precision Angular Contact Ball Bearings 71918 ACD/HCP4ADBC

The 71918 ACD/HCP4ADBC is a super precision angular contact ball bearing with a 90mm bore and 125mm outer diameter, designed for high-performance applications. Its 25° contact angle and moderate preload ensure smooth operation under radial loads up to 16380 lbf.

Made from chrome steel rings and ceramic balls, it offers excellent durability and can handle speeds up to 15000 RPM. The phenolic cage provides stability, while the open design allows for easy lubrication.

This matched set of two bearings (DB arrangement) is ideal for precise machinery like spindles or CNC tools. It operates reliably in temperatures from -30°C to 110°C.

Weighing 0.94kg, it’s a robust yet manageable choice for industrial use. Compliant with P4A tolerance standards, it’s interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 71918 ACD/HCP4ADBC
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 90 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 125 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 36 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 11.112 mm
  • Ball Qty 26
  • 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 Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 16380 lbf
  • Static Radial Load 21712 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 15000 rpm
  • Weight 0.94 kg
Super Precision Angular Contact Ball Bearings 71918 ACD/HCP4ADBC dimension drawing
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Features

Performance Features of 71918 ACD/HCP4ADBC Bearing

71918 ACD/HCP4ADBC Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
The chrome steel rings and ceramic balls enhance durability and reduce friction.

Its dynamic radial load capacity of 16380 lbf ensures reliable performance under stress.
The phenolic cage maintains ball alignment, contributing to smooth operation.

With a maximum speed of 15,000 rpm, it excels in high-speed applications.
The matched arrangement of two bearings provides stability and precision.

The moderate preload (Class C) balances performance and longevity.
Its temperature range of -30°C to 110°C makes it suitable for various environments.

Application

Practical Applications of 71918 ACD/HCP4ADBC Bearing
71918 ACD/HCP4ADBC Bearing is commonly used in high-speed machine tools, where its moderate preload and ceramic balls ensure smooth operation. The matched arrangement of two bearings helps maintain precision under angular loads.

In robotics, 71918 ACD/HCP4ADBC Bearing provides reliable support for articulated arms, thanks to its phenolic cage and chrome steel rings. The P4A tolerance class makes it suitable for applications demanding tight precision.

For aerospace components, 71918 ACD/HCP4ADBC Bearing’s ability to handle dynamic radial loads makes it a go-to choice for actuators and control systems. Its temperature range also allows for consistent performance in varying conditions.

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