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Super Precision Angular Contact Ball Bearings 71920 ACDGB/HCP4A

Super Precision Angular Contact Ball Bearings 71920 ACDGB/HCP4A

The 71920 ACDGB/HCP4A is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from high-quality chrome steel. It features a 25° contact angle and ceramic balls for smooth operation.

This bearing handles radial loads up to 12870 lbf and spins at speeds up to 15000 RPM, making it suitable for high-performance applications. Its phenolic cage ensures durability and reduces friction.

With a light preload (Class B), it offers precise movement and is ideal for paired arrangements like back-to-back or face-to-face setups. The open design allows for easy lubrication.

Perfect for machine tools or precision equipment where accuracy and speed are key. Weighing 0.67kg, it’s robust yet manageable for its size. Compliant with P4A tolerance standards for reliable performance.

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Product Parameters

  • Part Number 71920 ACDGB/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 100 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 140 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 20 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 12.7 mm
  • Ball Qty 26
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 12870 lbf
  • Static Radial Load 14175 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 15000 rpm
  • Weight 0.67 kg
Super Precision Angular Contact Ball Bearings 71920 ACDGB/HCP4A dimension drawing
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Features

Why Choose 71920 ACDGB/HCP4A Bearing for Precision Tasks?

71920 ACDGB/HCP4A Bearing features a 25° contact angle, ideal for high-precision angular contact applications.
Its ceramic balls and chrome steel rings ensure smooth operation with minimal friction.

With a dynamic radial load capacity of 12870 lbf, it handles demanding tasks reliably.
The phenolic cage maintains ball alignment, enhancing durability and performance.

Operating at speeds up to 15,000 rpm, it balances speed and precision effortlessly.
Its P4A tolerance class guarantees consistent accuracy in critical applications.

The lightweight design at 0.67 kg reduces overall system weight without compromising strength.
Suitable for temperatures from -30°C to 110°C, it performs well in varied environments.

Application

Industrial Uses of 71920 ACDGB/HCP4A Bearing
71920 ACDGB/HCP4A Bearing is commonly used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction and heat buildup. The 25° contact angle ensures stable performance under combined radial and axial loads.

In robotics, 71920 ACDGB/HCP4A Bearing provides smooth motion for articulated arms, thanks to its P4A precision tolerance. The lightweight phenolic cage also minimises vibration during rapid movements.

For aerospace applications, 71920 ACDGB/HCP4A Bearing’s chrome steel rings withstand harsh conditions while maintaining accuracy. Its open design allows for custom lubrication to suit specific operational needs.

Where Is 71920 ACDGB/HCP4A Bearing Used?
You’ll find 71920 ACDGB/HCP4A Bearing in precision medical imaging devices, where its low noise and high-speed capabilities are essential. The ceramic balls also resist corrosion from frequent sterilisation.

In automotive testing equipment, 71920 ACDGB/HCP4A Bearing handles rapid directional changes with minimal wear. Its light preload ensures consistent performance over extended periods.

Built for Heavy-Duty Use: 71920 ACDGB/HCP4A Bearing
71920 ACDGB/HCP4A Bearing excels in industrial pumps, where its dynamic load capacity keeps systems running smoothly. The metric dimensions make it easy to integrate into existing machinery.

For 3D printing systems, 71920 ACDGB/HCP4A Bearing’s precision reduces layer misalignment during high-speed printing. The temperature-resistant materials prevent deformation under continuous use.

Automotive vs Aerospace: Applications of 71920 ACDGB/HCP4A Bearing
In automotive turbochargers, 71920 ACDGB/HCP4A Bearing manages extreme speeds with its balanced ceramic balls. The phenolic cage dampens vibrations for quieter operation.

Aerospace actuators rely on 71920 ACDGB/HCP4A Bearing for its reliability in critical flight systems. The P4A tolerance ensures exact positioning under varying pressures.

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