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Super Precision Angular Contact Ball Bearings 71920 FE/HCPA9ADGA

Super Precision Angular Contact Ball Bearings 71920 FE/HCPA9ADGA

The 71920 FE/HCPA9ADGA is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from high-quality chrome steel. Its 18° contact angle and ceramic balls ensure smooth operation under radial loads up to 14040 lbf.

This bearing features a phenolic cage and comes pre-lubricated, allowing it to reach speeds of up to 16000 RPM. The universal matching design lets you arrange it back-to-back, face-to-face, or tandem for flexible installation.

With a temperature range of -30°C to 110°C, it’s suitable for high-speed applications like machine tool spindles or precision equipment. The extra-light preload (Class A) ensures minimal friction and consistent performance.

Weighing 1.3kg, it’s part of a matched set of two bearings, interchangeable with SKF models. Its open design simplifies maintenance while meeting PA9A tolerance standards for accuracy.

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Product Parameters

  • Part Number 71920 FE/HCPA9ADGA
  • 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 18°
  • Tolerance Class PA9A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Universal matching
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 14040 lbf
  • Static Radial Load 13950 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16000 rpm
  • Weight 1.3 kg
Super Precision Angular Contact Ball Bearings 71920 FE/HCPA9ADGA dimension drawing
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Features

Performance Features of 71920 FE/HCPA9ADGA Bearing

71920 FE/HCPA9ADGA Bearing is designed with a precise 18° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and ceramic balls enhance durability while reducing friction.

The phenolic cage ensures smooth operation, even at high speeds up to 16,000 rpm.
With universal matching capability, it offers flexibility in back-to-back, face-to-face, or tandem arrangements.

71920 FE/HCPA9ADGA Bearing’s extra light preload (Class A) provides consistent performance in precision tasks.
Its dynamic radial load capacity of 14,040 lbf ensures reliability under demanding conditions.

The open design allows for easy lubrication, maintaining optimal performance.
Operating between -30°C to 110°C, it adapts well to various environmental conditions.

Application

Industrial Uses of 71920 FE/HCPA9ADGA Bearing
71920 FE/HCPA9ADGA Bearing is commonly used in high-speed machine spindles, where its precision angular contact design ensures accurate rotation. The ceramic balls reduce friction, making it ideal for applications demanding smooth operation.

Where Is 71920 FE/HCPA9ADGA Bearing Used?
You’ll often find 71920 FE/HCPA9ADGA Bearing in CNC machining centres, where its extra light preload enhances performance. Its universal matching feature allows flexible arrangement in back-to-back or face-to-face configurations.

Built for Heavy-Duty Use: 71920 FE/HCPA9ADGA Bearing
71920 FE/HCPA9ADGA Bearing handles dynamic radial loads up to 14040 lbf, making it suitable for industrial gearboxes. The phenolic cage adds durability, especially in high-temperature environments.

Automotive vs Aerospace: Applications of 71920 FE/HCPA9ADGA Bearing
In automotive systems, 71920 FE/HCPA9ADGA Bearing supports high-performance transmissions, while in aerospace, its precision suits turbine engines. The metric sizing ensures compatibility across industries.

Perfect Fit for Automation: 71920 FE/HCPA9ADGA Bearing
71920 FE/HCPA9ADGA Bearing excels in robotic arms, where its 18° contact angle provides stability. The lubricated design ensures long service life even in continuous operation.

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