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Super Precision Angular Contact Ball Bearings 71920 ACDGA/P4AL

Super Precision Angular Contact Ball Bearings 71920 ACDGA/P4AL

The 71920 ACDGA/P4AL is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, designed for high-speed applications. Its 25° contact angle efficiently handles both radial and axial loads, with dynamic radial load capacity up to 12870 lbf.

Made from chrome steel with a phenolic cage, it offers durability and smooth operation at speeds up to 15000 RPM. The extra light preload (Class A) ensures minimal friction and precise performance.

This open-type bearing is lubricated for long service life and operates in temperatures from -30°C to 110°C. It can be paired in back-to-back, face-to-face, or tandem arrangements for versatile use.

Ideal for machine tool spindles or high-precision equipment where accuracy is crucial. Weighing 0.8kg, it meets P4A tolerance standards for reliable performance. Interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 71920 ACDGA/P4AL
  • 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 Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • 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 0.8 kg
Super Precision Angular Contact Ball Bearings 71920 ACDGA/P4AL dimension drawing
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Features

Performance Features of 71920 ACDGA/P4AL Bearing

71920 ACDGA/P4AL Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and wear.

With a dynamic radial load capacity of 12870 lbf, 71920 ACDGA/P4AL Bearing handles demanding conditions reliably.
The extra light preload (Class A) enhances precision, making it suitable for high-speed operations up to 15,000 rpm.

71920 ACDGA/P4AL Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its universal matching capability allows flexible arrangements like back-to-back or face-to-face configurations.

The P4A tolerance class ensures high precision, while the lubricated design minimises maintenance needs.
Weighing just 0.8 kg, it balances performance and ease of handling.

Application

Industrial Uses of 71920 ACDGA/P4AL Bearing
71920 ACDGA/P4AL Bearing is commonly used in high-precision machine tools, where its 25° contact angle ensures accurate radial and axial load distribution. The open design and phenolic cage make it suitable for high-speed operations without compromising stability.

Where Is 71920 ACDGA/P4AL Bearing Used?
You’ll find 71920 ACDGA/P4AL Bearing in automotive applications like electric motor shafts, where its extra-light preload reduces friction and improves efficiency. The P4A tolerance class guarantees consistent performance in demanding conditions.

Built for Heavy-Duty Use: 71920 ACDGA/P4AL Bearing
71920 ACDGA/P4AL Bearing excels in robotics, particularly in robotic arms requiring smooth, precise movement. Its chrome steel construction and 15,000 rpm max speed make it reliable for continuous operation.

Medical vs Industrial: Where 71920 ACDGA/P4AL Bearing Excels
In medical imaging devices, 71920 ACDGA/P4AL Bearing’s precision and low noise are ideal for sensitive equipment. Meanwhile, industrial gearboxes benefit from its high dynamic radial load capacity and durability.

Perfect Fit for Automation: 71920 ACDGA/P4AL Bearing
71920 ACDGA/P4AL Bearing is a go-to for automated production lines, where its tandem arrangement options provide flexibility. The lubricated design ensures long service life even in high-cycle applications.

Q&A

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