+86 15806631151 [email protected]
TFL BEARINGS
REQUEST A QUOTE
Super Precision Angular Contact Ball Bearings 71938 CD/P4A

Super Precision Angular Contact Ball Bearings 71938 CD/P4A

The 71938 CD/P4A is a super precision angular contact ball bearing with a 190mm bore and 260mm outer diameter, designed for high-performance applications. Its 15° contact angle efficiently handles both radial and axial loads, with dynamic radial load capacity up to 38700 lbf.

Made from durable chrome steel with a phenolic cage, it offers smooth operation at speeds up to 7500 RPM. The open design allows for easy lubrication, while the P4 tolerance class ensures exceptional running accuracy.

This bearing is suitable for precision machinery like spindles or CNC equipment where minimal vibration is crucial. It operates reliably in temperatures from -30°C to 110°C.

Weighing 4.35kg, it’s robust yet precision-engineered for demanding environments. The bearing is interchangeable with SKF models, making it a practical choice for replacements or upgrades.

Get A Free Quote
    Description Features Application Q&A Featured Products Our Process

Product Parameters

  • Part Number 71938 CD/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 190 mm
  • Bore Dia Tolerance -0.012mm to 0
  • Outer Dia 260 mm
  • Outer Dia Tolerance -0.013mm to 0
  • Width 33 mm
  • Width Tolerance -0.24mm to 0
  • Ball Dia 22.225 mm
  • Ball Qty 28
  • Contact Angle 15°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 38700 lbf
  • Static Radial Load 49500 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 7500 rpm
  • Weight 4.35 kg
  • Price（$） 3722.364
Super Precision Angular Contact Ball Bearings 71938 CD/P4A dimension drawing
Download DWG Download PDF

Features

Performance Features of 71938 CD/P4A Bearing

71938 CD/P4A Bearing is crafted with a 15° contact angle, ideal for handling combined radial and axial loads.
Its chrome steel rings and balls provide strength, while the phenolic cage ensures smooth operation at high speeds.

With a dynamic radial load capacity of 38,700 lbf, it delivers reliable performance in precision applications.
The P4 tolerance class guarantees high accuracy, making it suitable for demanding machinery.

71938 CD/P4A Bearing operates efficiently within a temperature range of -30° to 110°C.
Its open design allows for easy lubrication, ensuring long service life with minimal maintenance.

Application

Industrial Uses of 71938 CD/P4A Bearing
71938 CD/P4A Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The phenolic cage reduces friction, making it suitable for long operational cycles.

In aerospace applications, 71938 CD/P4A Bearing handles radial and axial loads in turbine systems, thanks to its chrome steel construction. Its P4 tolerance class guarantees the precision needed for critical flight components.

For robotics, 71938 CD/P4A Bearing provides smooth motion in articulated arms, with its 15° contact angle optimising load distribution. The open seal design allows for easy lubrication, extending service life in automated environments.

Medical imaging devices benefit from 71938 CD/P4A Bearing’s low vibration and high-speed capabilities. Its consistent performance is vital for maintaining accuracy in diagnostic equipment.

In automotive testing rigs, 71938 CD/P4A Bearing supports dynamic load simulations, where its durability ensures reliable data collection. The metric sizing simplifies integration with European and Asian machinery standards.

Q&A

SEND INQUIRY