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Super Precision Angular Contact Ball Bearings 71812 ACD/HCP4QBCBVK360

Super Precision Angular Contact Ball Bearings 71812 ACD/HCP4QBCBVK360

The 71812 ACD/HCP4QBCBVK360 is a super precision angular contact ball bearing with a 60mm bore and 78mm outer diameter, crafted from high-quality chrome steel. It features a 25° contact angle and comes in a matched set of four bearings for balanced performance.

This bearing handles radial loads up to 7470 lbf and reaches speeds of 35,000 RPM, thanks to its ceramic balls and phenolic cage. Its open design allows for easy lubrication, ensuring smooth operation in temperatures from -30°C to 110°C.

The light preload (Class B) and P4A tolerance class make it ideal for high-precision applications. Its 28 ceramic balls reduce friction and wear, enhancing durability.

Perfect for machine tools or high-speed spindles where precision and reliability are key. Weighing 0.35kg, it’s a robust yet lightweight solution for demanding environments. Interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 71812 ACD/HCP4QBCBVK360
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 60 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 78 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 40 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 5.556 mm
  • Ball Qty 28
  • Contact Angle 25°
  • 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 Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 7470 lbf
  • Static Radial Load 11925 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 35000 rpm
  • Weight 0.35 kg
Super Precision Angular Contact Ball Bearings 71812 ACD/HCP4QBCBVK360 dimension drawing
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Features

Performance Features of 71812 ACD/HCP4QBCBVK360 Bearing

71812 ACD/HCP4QBCBVK360 Bearing is designed with a 25° contact angle, ideal for handling combined radial and axial loads.
Its chrome steel rings and ceramic balls ensure high precision and durability in demanding applications.

The phenolic cage maintains ball alignment, reducing friction and enhancing operational smoothness.
With a dynamic radial load capacity of 7470 lbf, it performs reliably under heavy loads.

This bearing set includes four matched units, optimised for consistent performance.
Its P4A tolerance class guarantees exceptional accuracy for precision machinery.

Lubricated for long service life, it operates smoothly at speeds up to 35,000 rpm.
The temperature range of -30°C to 110°C makes it suitable for various industrial environments.

Application

Industrial Uses of 71812 ACD/HCP4QBCBVK360 Bearing
71812 ACD/HCP4QBCBVK360 Bearing is commonly used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction and heat buildup. The P4A tolerance ensures precise alignment for demanding industrial applications.

Where Is 71812 ACD/HCP4QBCBVK360 Bearing Used?
In robotics, 71812 ACD/HCP4QBCBVK360 Bearing provides smooth motion control for articulated arms, thanks to its angular contact design. The light preload helps maintain accuracy in repetitive tasks.

Built for Heavy-Duty Use: 71812 ACD/HCP4QBCBVK360 Bearing
71812 ACD/HCP4QBCBVK360 Bearing handles radial and axial loads in gearboxes, making it suitable for automotive transmissions. Its matched set of four bearings ensures even load distribution.

Medical vs Industrial: Where 71812 ACD/HCP4QBCBVK360 Bearing Excels
For medical imaging devices, 71812 ACD/HCP4QBCBVK360 Bearing offers quiet operation and minimal vibration. In industrial settings, its high-speed capability suits spindle drives and precision equipment.

Practical Applications of 71812 ACD/HCP4QBCBVK360 Bearing
71812 ACD/HCP4QBCBVK360 Bearing works well in 3D printers, where its low friction and high precision improve print quality. The open seal design allows for easy lubrication when needed.

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