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Super Precision Angular Contact Ball Bearings 71948 CD/P4ADBC

Super Precision Angular Contact Ball Bearings 71948 CD/P4ADBC

The 71948 CD/P4ADBC is a super precision angular contact ball bearing with a 240mm bore and 320mm outer diameter, designed for high-accuracy applications. Its 15° contact angle and moderate preload ensure smooth operation under radial loads up to 83475 lbf.

Made from durable chrome steel with a phenolic cage, it handles speeds up to 7500 RPM and temperatures from -30°C to 110°C. The open design allows for easy lubrication, enhancing its lifespan.

This matched set of two bearings (DB arrangement) offers stable performance in demanding setups. Ideal for machine tools or high-precision spindles where tight tolerances (P4A class) are crucial.

Weighing 17kg, it’s robust yet engineered for precision. Compatible with SKF equivalents, making replacements straightforward.

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Product Parameters

  • Part Number 71948 CD/P4ADBC
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 240 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 320 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 76 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 25.4 mm
  • Ball Qty 31
  • Contact Angle 15°
  • 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 Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 83475 lbf
  • Static Radial Load 144000 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 7500 rpm
  • Weight 17 kg
Super Precision Angular Contact Ball Bearings 71948 CD/P4ADBC dimension drawing
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Features

Performance Features of 71948 CD/P4ADBC Bearing

71948 CD/P4ADBC Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability under high dynamic radial loads of up to 83,475 lbf.

The phenolic cage maintains ball alignment, reducing friction and enhancing smooth operation.
With a maximum speed of 7,500 rpm, it balances performance and efficiency in demanding conditions.

71948 CD/P4ADBC Bearing operates reliably in temperatures ranging from -30°C to 110°C.
Its matched arrangement of two bearings provides stability and precision for specialised applications.

Application

Key Fields for 71948 CD/P4ADBC Bearing
71948 CD/P4ADBC Bearing is widely used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The matched arrangement of two bearings provides stability under heavy radial loads, making it ideal for milling and grinding applications.

In aerospace components, 71948 CD/P4ADBC Bearing handles the demanding requirements of jet engine systems. Its phenolic cage and chrome steel construction offer durability and resistance to high temperatures during prolonged use.

For automation systems, 71948 CD/P4ADBC Bearing supports robotic arms and CNC machinery with smooth, precise movement. The moderate preload helps maintain performance consistency even in high-speed operations.

Medical imaging devices benefit from 71948 CD/P4ADBC Bearing’s low vibration and high rigidity. Its P4A tolerance class ensures reliable operation in sensitive equipment like MRI scanners and X-ray machines.

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