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Super Precision Angular Contact Ball Bearings 71948 ACDGB/P4A

Super Precision Angular Contact Ball Bearings 71948 ACDGB/P4A

The 71948 ACDGB/P4A is a super precision angular contact ball bearing with a 240mm bore and 320mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 48600 lbf and operates smoothly at speeds up to 7500 RPM.

With a 25° contact angle and light preload, it offers excellent stability for high-precision applications. The phenolic cage ensures quiet operation and long service life, even in temperatures from -30°C to 110°C.

This bearing is part of a universal matching set, suitable for back-to-back, face-to-face, or tandem arrangements. Ideal for machine tools or spindle systems where precision and reliability are key.

Weighing 8.5kg, it’s robust yet manageable for its size. Compliant with P4A tolerance standards, it’s interchangeable with SKF bearings for easy replacements.

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Product Parameters

  • Part Number 71948 ACDGB/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 240 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 320 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 38 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 25.4 mm
  • Ball Qty 31
  • 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 Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 48600 lbf
  • Static Radial Load 68625 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 7500 rpm
  • Weight 8.5 kg
Super Precision Angular Contact Ball Bearings 71948 ACDGB/P4A dimension drawing
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Features

Performance Features of 71948 ACDGB/P4A Bearing

71948 ACDGB/P4A Bearing is crafted with chrome steel rings and balls, ensuring high precision and durability.
Its 25° contact angle allows for efficient handling of combined radial and axial loads.

The phenolic cage in 71948 ACDGB/P4A Bearing maintains ball alignment, reducing friction and wear.
With a dynamic radial load capacity of 48,600 lbf, it performs reliably in demanding applications.

71948 ACDGB/P4A Bearing operates smoothly at speeds up to 7,500 rpm, balancing speed and stability.
Its P4A tolerance class ensures exceptional accuracy for precision machinery.

The open design of 71948 ACDGB/P4A Bearing simplifies lubrication, enhancing its service life.
It functions effectively in temperatures ranging from -30°C to 110°C, adapting to various environments.

Weighing 8.5 kg, 71948 ACDGB/P4A Bearing is robust yet manageable for installation.
Its universal matching capability allows flexible configurations like back-to-back or face-to-face arrangements.

Application

Common Applications of 71948 ACDGB/P4A Bearing
71948 ACDGB/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 offers smooth operation at high speeds, making it suitable for spindle applications.

In aerospace components, 71948 ACDGB/P4A Bearing provides reliable performance in gearboxes and rotor systems. Its P4A tolerance class guarantees the precision needed for critical flight operations.

For automation systems, 71948 ACDGB/P4A Bearing supports robotic arms and CNC machinery with its light preload and consistent durability. The chrome steel construction ensures long service life even in demanding environments.

Medical imaging devices benefit from 71948 ACDGB/P4A Bearing’s low vibration and high-speed capabilities. The open design allows for easy lubrication, maintaining performance in sensitive equipment.

Q&A

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