Super Precision Angular Contact Ball Bearings 71928 ACDGC/P4A

Super Precision Angular Contact Ball Bearings 71928 ACDGC/P4A

The 71928 ACDGC/P4A is a super precision angular contact ball bearing with a 140mm bore and 190mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 20340 lbf and operates smoothly at speeds up to 11000 RPM.

With a 25° contact angle and moderate preload, it offers excellent stability for angular contact applications. The phenolic cage ensures quiet operation and long service life.

This bearing is suitable for high-precision machinery like CNC spindles or grinding equipment. Its open design allows for easy lubrication, enhancing performance in demanding conditions.

Weighing 1.65kg, it’s robust yet manageable for its size. Compliant with P4A tolerance standards, it ensures reliable performance in temperatures from -30°C to 110°C.

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Product Parameters

  • Part Number 71928 ACDGC/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 Moderate / Class C
  • 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

Features

Performance Features of 71928 ACDGC/P4A Bearing

71928 ACDGC/P4A Bearing is designed with a 25° contact angle, ideal for handling combined radial and axial loads.
Its chrome steel construction ensures durability and reliable performance in precision applications.

The phenolic cage maintains ball alignment, reducing friction and enhancing operational smoothness.
With a dynamic radial load capacity of 20340 lbf, it suits demanding industrial environments.

71928 ACDGC/P4A Bearing operates efficiently at speeds up to 11,000 rpm, balancing speed and load capacity.
Its open design allows for easy lubrication, ensuring consistent performance over time.

The P4A tolerance class guarantees high precision, making it suitable for critical applications.
Its temperature range of -30°C to 110°C ensures reliability in varying operating conditions.

Application

Key Fields for 71928 ACDGC/P4A Bearing
71928 ACDGC/P4A Bearing is widely used in high-precision machine tools, where its 25° contact angle ensures accurate radial and axial load handling. The phenolic cage reduces friction, making it ideal for high-speed spindle applications.

In aerospace components, 71928 ACDGC/P4A Bearing provides reliable performance in gearboxes and rotor systems. Its P4A tolerance class guarantees the precision needed for critical flight operations.

For robotics, 71928 ACDGC/P4A Bearing’s moderate preload enhances stability in articulated arms and joints. The chrome steel construction ensures durability even in continuous operation scenarios.

Medical imaging devices benefit from 71928 ACDGC/P4A Bearing’s smooth rotation and low vibration. Its open design allows for easy lubrication, maintaining performance in sensitive environments.

In automotive testing equipment, 71928 ACDGC/P4A Bearing handles high-speed rotations with minimal heat generation. The metric sizing ensures compatibility with a range of European and Asian machinery standards.

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