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Super Precision Angular Contact Ball Bearings 71948 CD/HCP4ADBA

Super Precision Angular Contact Ball Bearings 71948 CD/HCP4ADBA

The 71948 CD/HCP4ADBA is a super precision angular contact ball bearing with a 240mm bore and 320mm outer diameter, crafted from high-quality chrome steel. It features a 15° contact angle and comes in a matched set of two bearings for balanced performance.

This bearing handles radial loads up to 83,475 lbf and operates smoothly at speeds up to 7,500 RPM. Its ceramic balls and phenolic cage reduce friction, ensuring quiet and efficient rotation.

The open design allows for easy lubrication, while the extra-light preload enhances precision. Ideal for high-speed applications like machine tool spindles or precision instruments.

Weighing 12kg, it’s robust yet designed for accuracy. Compliant with P4A tolerance standards, it’s a reliable choice for demanding environments. Works well in temperatures from -30°C to 110°C.

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Product Parameters

  • Part Number 71948 CD/HCP4ADBA
  • 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 Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • 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 12 kg
Super Precision Angular Contact Ball Bearings 71948 CD/HCP4ADBA dimension drawing
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Features

Performance Features of 71948 CD/HCP4ADBA Bearing

71948 CD/HCP4ADBA Bearing features a 15° contact angle, optimised for precision angular contact applications.
Its chrome steel rings and ceramic balls ensure smooth operation under high radial loads.

The phenolic cage maintains ball alignment, reducing friction and enhancing durability.
With a dynamic radial load capacity of 83475 lbf, it handles demanding conditions reliably.

Designed for extra light preload, 71948 CD/HCP4ADBA Bearing offers consistent performance in matched arrangements.
Its P4A tolerance class ensures high precision for critical applications.

Application

Industrial Uses of 71948 CD/HCP4ADBA Bearing
71948 CD/HCP4ADBA 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.

In aerospace applications, 71948 CD/HCP4ADBA Bearing supports critical components like turbine shafts, thanks to its extra light preload and P4A tolerance class. Its phenolic cage offers excellent heat resistance in demanding environments.

For automation systems, 71948 CD/HCP4ADBA Bearing provides reliable performance in robotic arms, where consistent angular load handling is essential. The matched arrangement of two bearings enhances stability in dynamic applications.

Medical imaging devices benefit from 71948 CD/HCP4ADBA Bearing’s precision, ensuring smooth operation in scanners and diagnostic equipment. The chrome steel rings and ceramic balls contribute to long service life.

In electric motors, 71948 CD/HCP4ADBA Bearing’s low friction and high-speed capability improve efficiency and reduce energy consumption. The lubricated design ensures quiet operation in continuous use.

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