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Super Precision Angular Contact Ball Bearings 71928 ACD/HCP4ADGAGMM1

Super Precision Angular Contact Ball Bearings 71928 ACD/HCP4ADGAGMM1

The 71928 ACD/HCP4ADGAGMM1 is a super precision angular contact ball bearing with a 140mm bore and 190mm outer diameter, measuring 48mm in width. Made from chrome steel with ceramic balls, it offers smooth operation and durability.

With a 25° contact angle, it handles radial loads up to 32850 lbf and spins at speeds up to 11000 RPM. The extra light preload ensures minimal friction, ideal for high-precision applications.

Its open design and phenolic cage make maintenance easy while maintaining performance. The bearing works in temperatures from -30°C to 110°C and comes pre-lubricated with grease.

This universal matching set includes two bearings, suitable for back-to-back, face-to-face, or tandem arrangements. Perfect for machine tools or high-speed spindles where precision is key. Weighing 2.77kg, it’s robust yet manageable for its size.

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Product Parameters

  • Part Number 71928 ACD/HCP4ADGAGMM1
  • 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 48 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 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 32850 lbf
  • Static Radial Load 49500 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 11000 rpm
  • Weight 2.77 kg
Super Precision Angular Contact Ball Bearings 71928 ACD/HCP4ADGAGMM1 dimension drawing
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Features

Performance Features of 71928 ACD/HCP4ADGAGMM1 Bearing

71928 ACD/HCP4ADGAGMM1 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 for smoother operation.

Its dynamic radial load capacity of 32850 lbf ensures reliable performance in demanding conditions.
With a maximum speed of 11,000 rpm, it balances high-speed operation with precision.

The phenolic cage maintains ball alignment, extending service life and reducing maintenance needs.
Universal matching allows flexible arrangement options, including back-to-back or face-to-face configurations.

Grease lubrication ensures consistent performance across a temperature range of -30°C to 110°C.
The P4A tolerance class guarantees precision, making it suitable for high-accuracy applications.

Application

Common Applications of 71928 ACD/HCP4ADGAGMM1 Bearing
71928 ACD/HCP4ADGAGMM1 Bearing is widely used in high-precision machine tools, where its 25° contact angle ensures accurate radial and axial load handling. The ceramic balls and phenolic cage reduce friction, making it ideal for high-speed spindle applications.

In aerospace systems, 71928 ACD/HCP4ADGAGMM1 Bearing supports components like jet engine shafts, thanks to its P4A tolerance class and universal matching design. The grease lubrication ensures smooth operation even under extreme temperature variations.

For automation equipment, 71928 ACD/HCP4ADGAGMM1 Bearing’s extra light preload enhances performance in robotic arms and CNC machines. Its chrome steel rings provide durability, while the open seal allows for easy maintenance in industrial settings.

Medical imaging devices benefit from 71928 ACD/HCP4ADGAGMM1 Bearing’s precision and low vibration. The ceramic balls minimise heat generation, ensuring reliable performance in sensitive diagnostic equipment like MRI scanners.

In electric vehicle drivetrains, 71928 ACD/HCP4ADGAGMM1 Bearing handles high-speed rotations efficiently. Its matched arrangement and grease lubrication make it a dependable choice for reducing energy loss in motor assemblies.

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