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Super Precision Angular Contact Ball Bearings 71928 ACD/P4ADGB

Super Precision Angular Contact Ball Bearings 71928 ACD/P4ADGB

The 71928 ACD/P4ADGB is a super precision angular contact ball bearing with a 140mm bore and 190mm outer diameter, designed for high accuracy applications. Its 25° contact angle and light preload ensure smooth operation under radial loads up to 32850 lbf.

Made from chrome steel with a phenolic cage, it offers durability and can handle speeds up to 11000 RPM. The open design allows for easy lubrication and maintenance.

This bearing is part of a matched set, suitable for universal mounting in back-to-back, face-to-face, or tandem configurations. Ideal for machine tools or high-speed spindles where precision is key.

Weighing 3.3kg, it operates efficiently in temperatures from -30°C to 110°C. Compliant with P4A tolerance standards, it’s interchangeable with SKF bearings for reliable replacements.

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Product Parameters

  • Part Number 71928 ACD/P4ADGB
  • 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 Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 32850 lbf
  • Static Radial Load 49500 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 11000 rpm
  • Weight 3.3 kg
  • Price（$） 157.14
Super Precision Angular Contact Ball Bearings 71928 ACD/P4ADGB dimension drawing
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Features

Performance Features of 71928 ACD/P4ADGB Bearing

71928 ACD/P4ADGB Bearing is crafted for high-speed applications, with a maximum speed of 11,000 rpm.
Its 25° contact angle ensures optimal load distribution, enhancing performance in angular contact scenarios.

The chrome steel rings and balls provide durability, while the phenolic cage reduces friction.
This combination allows smooth operation even under dynamic radial loads up to 32,850 lbf.

With universal matching capability, 71928 ACD/P4ADGB Bearing offers flexibility in back-to-back or face-to-face arrangements.
Its precision P4A tolerance class ensures reliable performance in demanding conditions.

The open design and lubrication system maintain efficiency across a temperature range of -30°C to 110°C.
This makes 71928 ACD/P4ADGB Bearing suitable for various industrial applications.

Application

Key Fields for 71928 ACD/P4ADGB Bearing
71928 ACD/P4ADGB Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The light preload and universal matching make it adaptable for various configurations.

In aerospace applications, 71928 ACD/P4ADGB Bearing handles radial and axial loads in components like landing gear systems. Its phenolic cage offers stability under high-speed conditions, crucial for flight safety.

For automation systems, 71928 ACD/P4ADGB Bearing supports robotic arms, providing smooth movement with minimal friction. The P4A tolerance class ensures consistent performance in repetitive tasks.

Medical imaging devices benefit from 71928 ACD/P4ADGB Bearing’s precision, particularly in MRI machines where quiet operation is essential. The chrome steel construction also resists wear in sterile environments.

In electric vehicle motors, 71928 ACD/P4ADGB Bearing manages high-speed rotations efficiently. Its lubricated design reduces maintenance needs, ideal for long-term use.

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