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Super Precision Angular Contact Ball Bearings 71928 ACDGA/P4A

Super Precision Angular Contact Ball Bearings 71928 ACDGA/P4A

The 71928 ACDGA/P4A is a super precision angular contact ball bearing, measuring 140mm by 190mm by 24mm. Made from high-quality chrome steel, it’s designed for angular contact loads with a 25° contact angle.

It handles dynamic radial loads up to 20340 lbf and static loads up to 24750 lbf, spinning smoothly at speeds up to 11000 RPM. The phenolic cage ensures durability and reduces friction.

This bearing comes with an extra light preload (Class A) and is lubricated for easy maintenance. It operates well in temperatures from -30°C to 110°C.

Ideal for high-precision applications like machine tools or spindles, it’s interchangeable with SKF bearings. Weighing 1.65kg, it’s robust yet manageable for its size. The open design allows for versatile mounting options.

Part of a universal matching set, it can be arranged back-to-back, face-to-face, or tandem for flexible use. Compliant with P4A tolerance standards for reliable performance.

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Product Parameters

  • Part Number 71928 ACDGA/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 140 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 190 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 24 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 15.875 mm
  • Ball Qty 29
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 3
  • 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 20340 lbf
  • Static Radial Load 24750 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 11000 rpm
  • Weight 1.65 kg
  • Price（$） 612.54
Super Precision Angular Contact Ball Bearings 71928 ACDGA/P4A dimension drawing
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Features

Performance Features of 71928 ACDGA/P4A Bearing

71928 ACDGA/P4A Bearing is designed with a 25° contact angle, optimising load distribution for precision applications.
Its chrome steel rings and balls enhance durability, supporting dynamic radial loads up to 20,340 lbf.

The phenolic cage ensures smooth operation at high speeds, reaching up to 11,000 rpm.
With a P4A tolerance class, it delivers consistent performance in demanding conditions.

71928 ACDGA/P4A Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its open design allows for easy lubrication, reducing maintenance requirements.

The bearing’s universal matching capability enables flexible arrangement options.
This makes it suitable for complex setups requiring back-to-back or face-to-face configurations.

Application

Industrial Uses of 71928 ACDGA/P4A Bearing
71928 ACDGA/P4A Bearing is commonly used in high-precision machine tools, where its extra light preload ensures smooth operation. The 25° contact angle provides excellent radial and axial load capacity for demanding applications.

Where Is 71928 ACDGA/P4A Bearing Used?
You’ll find 71928 ACDGA/P4A Bearing in automotive transmissions, where its phenolic cage reduces friction and heat buildup. Its P4A tolerance class makes it ideal for high-speed, high-accuracy requirements.

Built for Heavy-Duty Use: 71928 ACDGA/P4A Bearing
71928 ACDGA/P4A Bearing handles heavy loads in industrial pumps and compressors with ease. The chrome steel construction ensures long-lasting performance even in tough environments.

Automotive vs Aerospace: Applications of 71928 ACDGA/P4A Bearing
In automotive systems, 71928 ACDGA/P4A Bearing supports gearbox components, while in aerospace, it’s used in turbine assemblies. Its universal matching capability allows for flexible configurations.

Key Fields for 71928 ACDGA/P4A Bearing
71928 ACDGA/P4A Bearing is a go-to choice for robotics, where precision and reliability are key. The open design and lubricated setup make maintenance straightforward.

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