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Super Precision Angular Contact Ball Bearings 71930 CD/P4AQBCD

Super Precision Angular Contact Ball Bearings 71930 CD/P4AQBCD

The 71930 CD/P4AQBCD is a super precision angular contact ball bearing with a 150mm bore and 210mm outer diameter, crafted from high-grade chrome steel. It measures 150mm x 210mm x 112mm, making it a sturdy choice for demanding applications.

This bearing handles heavy radial loads up to 67950 lbf and operates smoothly at speeds up to 11000 RPM. Its 15° contact angle and heavy preload ensure stable performance under angular forces.

The open design allows for easy lubrication, while the phenolic cage enhances durability. It comes in a matched set of four bearings, ideal for precise alignment needs.

Suitable for high-precision machinery like spindles or CNC equipment, it performs reliably in temperatures from -30°C to 110°C. Weighing 10kg, it’s built for long-term use in industrial settings.

Interchangeable with SKF bearings, it meets P4A tolerance standards for exceptional accuracy. The 23 chrome steel balls, each 19.05mm in diameter, contribute to its smooth operation.

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Product Parameters

  • Part Number 71930 CD/P4AQBCD
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 150 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 210 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 112 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 19.05 mm
  • Ball Qty 23
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 4 bearings <<>> QBC
  • Number Of Bearings In Matched Set 4
  • Universal Matching Bearing No
  • Preload Heavy / Class D
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 67950 lbf
  • Static Radial Load 117000 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 11000 rpm
  • Weight 10 kg
Super Precision Angular Contact Ball Bearings 71930 CD/P4AQBCD dimension drawing
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Features

Performance Features of 71930 CD/P4AQBCD Bearing

71930 CD/P4AQBCD Bearing is crafted with chrome steel rings and balls, offering high resistance to radial and angular loads.
Its dynamic radial load capacity reaches 67,950 lbf, making it suitable for demanding applications.

The phenolic cage ensures smooth operation and reduces friction, enhancing efficiency.
With a maximum speed of 11,000 rpm, it balances speed and durability.

71930 CD/P4AQBCD Bearing operates effectively in temperatures ranging from -30°C to 110°C.
Its precision design and heavy preload class D ensure reliable performance in high-stress conditions.

The matched arrangement of four bearings provides stability and consistent operation.
This makes 71930 CD/P4AQBCD Bearing ideal for precision machinery and high-speed applications.

Application

Industrial Uses of 71930 CD/P4AQBCD Bearing
This bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The heavy preload and P4A tolerance make it suitable for demanding industrial environments.

In aerospace applications, 71930 CD/P4AQBCD Bearing supports critical components like turbine shafts, thanks to its high dynamic radial load capacity. The phenolic cage provides stability under extreme temperatures and speeds.

For automation systems, 71930 CD/P4AQBCD Bearing is ideal for robotic arms, offering smooth movement with minimal vibration. The matched set of four bearings enhances performance in multi-axis setups.

Medical imaging devices benefit from 71930 CD/P4AQBCD Bearing’s precision, ensuring reliable operation in MRI machines. The chrome steel construction adds durability for long-term use.

In electric vehicle motors, 71930 CD/P4AQBCD Bearing handles high speeds efficiently. Its open design allows for easy lubrication, extending service life in automotive applications.

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