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Super Precision Angular Contact Ball Bearings 71930 ACD/HCP4A

Super Precision Angular Contact Ball Bearings 71930 ACD/HCP4A

The 71930 ACD/HCP4A is a super precision angular contact ball bearing with a 150mm bore and 210mm outer diameter, designed for high-speed applications. Its 25° contact angle and ceramic balls ensure smooth operation under heavy radial loads up to 24300 lbf.

The open design allows easy lubrication, while the phenolic cage reduces friction for speeds up to 10000 RPM. With a P4 tolerance class, it offers exceptional accuracy for demanding setups.

This bearing is ideal for machine tools or spindle systems where precision and speed are crucial. It handles temperatures from -30°C to 110°C and weighs 2.08kg, making it sturdy yet manageable for its size. Interchangeable with SKF bearings, it’s a reliable choice for replacements.

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Product Parameters

  • Part Number 71930 ACD/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 150 mm
  • Bore Dia Tolerance -0.01mm to 0
  • Outer Dia 210 mm
  • Outer Dia Tolerance -0.011mm to 0
  • Width 28 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 19.05 mm
  • Ball Qty 23
  • Contact Angle 25°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Available
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 24300 lbf
  • Static Radial Load 28125 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 10000 rpm
  • Weight 2.08 kg
  • Price（$） 2128.167
Super Precision Angular Contact Ball Bearings 71930 ACD/HCP4A dimension drawing
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Features

Performance Features of 71930 ACD/HCP4A Bearing

71930 ACD/HCP4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
The chrome steel rings and ceramic balls enhance durability while reducing friction.

Its dynamic radial load capacity reaches 24,300 lbf, ensuring reliable performance under stress.
The phenolic cage maintains ball alignment, contributing to smoother operation.

With a maximum speed of 10,000 rpm, it balances high-speed performance with precision.
The P4 tolerance class ensures consistent accuracy in demanding conditions.

71930 ACD/HCP4A Bearing operates efficiently within a temperature range of -30° to 110°C.
Its open design allows for easy lubrication, extending service life.

Application

Ideal for Precision: 71930 ACD/HCP4A Bearing
71930 ACD/HCP4A Bearing is commonly used in high-speed machine spindles, where its 25° contact angle ensures accurate radial and axial load distribution. The ceramic balls reduce friction, making it suitable for precision grinding applications.

In aerospace components, 71930 ACD/HCP4A Bearing provides reliable performance in gearbox systems due to its phenolic cage and P4 tolerance class. Its matched arrangement option further enhances stability in critical flight operations.

For medical imaging devices like MRI scanners, 71930 ACD/HCP4A Bearing’s low heat generation and high-speed capability are key advantages. The open design allows for easy lubrication, extending service life in demanding environments.

Automation systems benefit from 71930 ACD/HCP4A Bearing’s consistent performance in robotic arms and CNC machinery. Its chrome steel rings and ceramic balls offer a balanced combination of durability and precision for long-term use.

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