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Super Precision Angular Contact Ball Bearings 71920 ACD/HCP4AH1

Super Precision Angular Contact Ball Bearings 71920 ACD/HCP4AH1

The 71920 ACD/HCP4AH1 is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from chrome steel for durability. Its 25° contact angle and ceramic balls ensure smooth operation under high radial loads up to 12870 lbf.

This bearing can handle speeds up to 15000 RPM and operates in temperatures from -30°C to 110°C. The phenolic cage adds strength while keeping the unit lightweight at just 0.67kg.

Designed for matched arrangements and preload options, it’s ideal for high-precision applications like machine tool spindles or robotics. The open seal allows for easy lubrication and maintenance.

Interchangeable with SKF bearings, this model meets P4A tolerance standards for reliable performance. Its compact 20mm width makes it suitable for space-constrained setups.

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Product Parameters

  • Part Number 71920 ACD/HCP4AH1
  • 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 Available
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Available
  • 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 ACD/HCP4AH1 dimension drawing
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Features

How Does 71920 ACD/HCP4AH1 Bearing Reduce Friction?

71920 ACD/HCP4AH1 Bearing features ceramic balls and a phenolic cage, significantly reducing friction during operation.
The 25° contact angle ensures smooth angular contact, enhancing precision in high-speed applications.

With a dynamic radial load capacity of 12870 lbf, it maintains performance under demanding conditions.
Its open design allows for easy lubrication, further minimising wear and extending service life.

The P4A tolerance class guarantees high precision, making it ideal for specialised machinery.
Operating at speeds up to 15,000 rpm, it combines efficiency with durability.

Application

Industrial Uses of 71920 ACD/HCP4AH1 Bearing
71920 ACD/HCP4AH1 Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The ceramic balls reduce friction, making it ideal for high-speed operations.

In automotive applications, 71920 ACD/HCP4AH1 Bearing supports performance in gearboxes and wheel hubs, where its phenolic cage provides durability. The P4A tolerance class ensures consistent performance under heavy loads.

For medical imaging devices, 71920 ACD/HCP4AH1 Bearing’s chrome steel rings and ceramic balls offer reliable, low-noise operation. Its open design allows for easy lubrication, extending service life in critical equipment.

Automation systems benefit from 71920 ACD/HCP4AH1 Bearing’s matched arrangement, ensuring smooth motion in robotic arms. The 25° contact angle provides excellent load distribution for precise movements.

In consumer electronics, 71920 ACD/HCP4AH1 Bearing is found in high-end printers, where its low friction and high-speed capability enhance performance. The metric sizing ensures compatibility with various European and Asian models.

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