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Super Precision Angular Contact Ball Bearings 71948 CD/P4ADBB

Super Precision Angular Contact Ball Bearings 71948 CD/P4ADBB

The 71948 CD/P4ADBB 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 light preload ensure smooth operation under radial loads up to 144,000 lbf.

Made from 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 easy lubrication, while the matched pair (DB arrangement) provides stability.

Ideal for machine tools or spindle systems where precision is key. Weighing 17kg, it’s robust yet engineered for minimal friction. Compliant with P4A tolerance standards for reliable performance.

Interchangeable with SKF bearings, making replacements straightforward. Suitable for industrial settings demanding both durability and exacting standards.

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Product Parameters

  • Part Number 71948 CD/P4ADBB
  • 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 Light / Class B
  • 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/P4ADBB dimension drawing
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Features

Performance Features of 71948 CD/P4ADBB Bearing

71948 CD/P4ADBB Bearing is designed with a 15° contact angle, optimising load distribution for precision applications.
Its chrome steel rings and balls ensure durability under high dynamic radial loads of up to 83,475 lbf.

The matched arrangement of two bearings in a DB configuration enhances stability and performance.
With a maximum speed of 7,500 rpm, it maintains efficiency in demanding conditions.

Phenolic cage material reduces friction and wear, contributing to smoother operation.
Its P4A tolerance class ensures high precision, making it suitable for critical applications.

The open design allows for easy lubrication, extending the bearing’s service life.
Operating within a temperature range of -30°C to 110°C, it performs reliably in varied environments.

Application

Common Applications of 71948 CD/P4ADBB Bearing
71948 CD/P4ADBB 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 in demanding industrial environments.

In aerospace applications, 71948 CD/P4ADBB Bearing supports critical components like turbine shafts, thanks to its high dynamic radial load capacity. The phenolic cage material offers excellent performance under high-speed conditions.

For automation systems, 71948 CD/P4ADBB Bearing is a reliable choice for robotic arms, where its light preload enhances precision movement. The open seal type allows for easy lubrication, extending service life in continuous operation.

Medical imaging devices benefit from 71948 CD/P4ADBB Bearing’s consistent performance, ensuring smooth operation in sensitive equipment. The chrome steel construction provides durability in sterile environments.

In electric vehicle drivetrains, 71948 CD/P4ADBB Bearing handles angular loads efficiently, contributing to smoother power transmission. Its metric dimensions make it compatible with various European and Asian automotive designs.

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