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Super Precision Angular Contact Ball Bearings 71920 ACE/HCPA9ADT

Super Precision Angular Contact Ball Bearings 71920 ACE/HCPA9ADT

The 71920 ACE/HCPA9ADT is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from chrome steel for durability. It handles radial loads up to 13612 lbf and operates smoothly at speeds up to 15000 RPM.

Its 25° contact angle and matched arrangement of two bearings provide excellent stability under angular loads. The ceramic balls and phenolic cage reduce friction, enhancing performance in high-speed applications.

This bearing comes preloaded for immediate use and works well in temperatures from -30°C to 110°C. Ideal for precision machinery like spindles or CNC equipment where accuracy is crucial.

Weighing 1.3kg, it’s robust yet manageable for its size. Compliant with PA9A tolerance standards, ensuring reliable performance in demanding conditions.

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Product Parameters

  • Part Number 71920 ACE/HCPA9ADT
  • 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 40 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 12.7 mm
  • Ball Qty 24
  • Contact Angle 25°
  • Tolerance Class PA9A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 2 bearings << DT
  • 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 13612 lbf
  • Static Radial Load 13500 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 15000 rpm
  • Weight 1.3 kg
Super Precision Angular Contact Ball Bearings 71920 ACE/HCPA9ADT dimension drawing
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Features

Why Choose 71920 ACE/HCPA9ADT Bearing for Precision Tasks?

71920 ACE/HCPA9ADT Bearing features a 25° contact angle, ideal for high-precision angular contact applications.
Its chrome steel rings and ceramic balls reduce friction, enhancing performance under dynamic radial loads up to 13612 lbf.

The phenolic cage ensures smooth operation at speeds up to 15,000 rpm, even in demanding conditions.
With a matched arrangement of two bearings, it offers consistent preload for reliable accuracy.

71920 ACE/HCPA9ADT Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its open design simplifies lubrication, maintaining optimal performance with minimal maintenance.

Application

Ideal for Precision: 71920 ACE/HCPA9ADT Bearing
This bearing is commonly used in high-speed machine tools, where its angular contact design ensures accurate spindle rotation. The ceramic balls reduce friction, making it suitable for prolonged operations.

In automotive applications, 71920 ACE/HCPA9ADT Bearing supports performance in gearbox systems, handling both radial and axial loads efficiently. Its phenolic cage offers durability under varying temperatures.

For robotics, 71920 ACE/HCPA9ADT Bearing provides smooth motion in articulated arms, thanks to its preloaded arrangement. The open seal design allows for easy lubrication maintenance.

Medical imaging devices benefit from 71920 ACE/HCPA9ADT Bearing’s precision, ensuring minimal vibration during scans. The chrome steel rings enhance longevity in sterile environments.

In automation lines, 71920 ACE/HCPA9ADT Bearing keeps conveyor systems running smoothly with its high-speed capability. The matched bearing set simplifies installation and alignment.

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