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Super Precision Angular Contact Ball Bearings 71928 ACDGA/HCP4A

Super Precision Angular Contact Ball Bearings 71928 ACDGA/HCP4A

The 71928 ACDGA/HCP4A is a super precision angular contact ball bearing with a 140mm bore and 190mm outer diameter, crafted from durable chrome steel and ceramic balls. It handles radial loads up to 20340 lbf and operates smoothly at speeds up to 11000 RPM.

Its phenolic cage and extra-light preload ensure quiet, efficient performance, while the 25° contact angle provides excellent stability. The bearing works in temperatures from -30°C to 110°C.

This model is interchangeable with SKF bearings and comes in a set of three, suitable for universal matching. Ideal for high-precision applications like machine tools or spindle drives where accuracy is key.

Weighing 1.39kg, it’s robust yet manageable for its size. Compliant with P4A tolerance standards for reliable performance.

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Product Parameters

  • Part Number 71928 ACDGA/HCP4A
  • 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 Ceramic
  • 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 1.39 kg
Super Precision Angular Contact Ball Bearings 71928 ACDGA/HCP4A dimension drawing
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Features

Performance Features of 71928 ACDGA/HCP4A Bearing

71928 ACDGA/HCP4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
The chrome steel rings and ceramic balls enhance durability while reducing friction.

With a dynamic radial load capacity of 20340 lbf, it handles demanding conditions effectively.
The phenolic cage ensures smooth operation, even at high speeds up to 11,000 rpm.

Its extra light preload (Class A) provides precision performance in sensitive applications.
The bearing operates reliably within a temperature range of -30°C to 110°C.

The open design allows for easy lubrication, maintaining efficiency over time.
Its universal matching capability supports back-to-back, face-to-face, or tandem arrangements.

Application

Key Fields for 71928 ACDGA/HCP4A Bearing
71928 ACDGA/HCP4A Bearing is commonly used in high-precision machine tools, where its 25° contact angle ensures accurate radial and axial load handling. The ceramic balls reduce friction, making it ideal for high-speed spindle applications.

In robotics, 71928 ACDGA/HCP4A Bearing provides smooth motion control in articulated arms and joints. Its phenolic cage offers lightweight durability, which is essential for repetitive movements.

For aerospace components, 71928 ACDGA/HCP4A Bearing’s P4A tolerance class guarantees reliability in critical systems like flight control mechanisms. The chrome steel rings withstand harsh conditions while maintaining precision.

Automotive testing equipment benefits from 71928 ACDGA/HCP4A Bearing’s extra light preload, ensuring consistent performance during rigorous evaluations. Its metric sizing fits seamlessly into European and Asian designs.

Medical imaging devices rely on 71928 ACDGA/HCP4A Bearing for quiet, vibration-free operation. The lubricated design minimises maintenance, making it suitable for long-term use in sensitive environments.

Q&A

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