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Super Precision Angular Contact Ball Bearings 71912 CD/P4AQBCA

Super Precision Angular Contact Ball Bearings 71912 CD/P4AQBCA

The 71912 CD/P4AQBCA is a super precision angular contact ball bearing with a 60mm bore and 85mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 11700 lbf and spins smoothly at speeds up to 31000 RPM.

Its 15° contact angle and extra-light preload ensure precise performance, while the phenolic cage offers quiet operation. The open design allows easy lubrication, ideal for high-speed applications.

This matched set of four bearings (QBC arrangement) provides stability in demanding setups. Suitable for machine tools or spindles where accuracy and speed are crucial.

Weighing 0.76kg, it operates in temperatures from -30°C to 110°C. Compliant with P4A tolerance class for reliable performance.

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Product Parameters

  • Part Number 71912 CD/P4AQBCA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 60 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 85 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 52 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 24
  • 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 Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 11700 lbf
  • Static Radial Load 13950 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 31000 rpm
  • Weight 0.76 kg
Super Precision Angular Contact Ball Bearings 71912 CD/P4AQBCA dimension drawing
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Features

How Does 71912 CD/P4AQBCA Bearing Achieve Super Precision?

71912 CD/P4AQBCA Bearing features a 15° contact angle, optimised for high-precision angular contact applications.
Its chrome steel rings and balls ensure durability while maintaining tight tolerances for smooth operation.

The phenolic cage design reduces friction and wear, enhancing the bearing’s lifespan.
With a dynamic radial load capacity of 11700 lbf, it handles demanding conditions reliably.

71912 CD/P4AQBCA Bearing operates at speeds up to 31,000 rpm, making it suitable for high-speed machinery.
Its extra light preload (Class A) ensures minimal vibration and noise during operation.

The matched arrangement of four bearings provides consistent performance in precision setups.
Lubrication is pre-applied, reducing initial maintenance requirements.

Application

Key Fields for 71912 CD/P4AQBCA Bearing
71912 CD/P4AQBCA Bearing is widely used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The phenolic cage reduces friction, making it suitable for high-speed operations.

In aerospace applications, 71912 CD/P4AQBCA Bearing supports critical components like turbine shafts, thanks to its extra light preload and P4A tolerance. Its chrome steel construction offers durability in demanding environments.

For automation systems, 71912 CD/P4AQBCA Bearing enhances the performance of robotic arms and CNC machines. The matched set of four bearings provides balanced load distribution, ensuring smooth movement.

Medical imaging devices benefit from 71912 CD/P4AQBCA Bearing’s low noise and high precision. The lubricated design ensures consistent performance in sensitive equipment.

In electric motors, 71912 CD/P4AQBCA Bearing handles both radial and axial loads efficiently. Its temperature range makes it reliable for various industrial and commercial applications.

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