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Super Precision Angular Contact Ball Bearings 71948 ACD/P4ADGA

Super Precision Angular Contact Ball Bearings 71948 ACD/P4ADGA

The 71948 ACD/P4ADGA is a super precision angular contact ball bearing with a 240mm bore and 320mm outer diameter, designed for high accuracy applications. Made from chrome steel, it handles radial loads up to 78975 lbf and operates smoothly at speeds up to 7500 RPM.

Its 25° contact angle and universal matching design allow flexible arrangements like back-to-back or face-to-face mounting. The phenolic cage ensures quiet operation and durability under demanding conditions.

This bearing is ideal for machine tools or high-speed spindles where precision is crucial. It works well in temperatures from -30°C to 110°C and comes pre-lubricated for easy installation.

Weighing 17kg, it’s robust yet designed for smooth performance. Compliant with P4A tolerance class, it’s interchangeable with SKF bearings for reliable replacements.

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Product Parameters

  • Part Number 71948 ACD/P4ADGA
  • 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 76 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 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 Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 78975 lbf
  • Static Radial Load 137250 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 7500 rpm
  • Weight 17 kg
  • Price（$） 379.341
Super Precision Angular Contact Ball Bearings 71948 ACD/P4ADGA dimension drawing
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Features

Performance Features of 71948 ACD/P4ADGA Bearing

71948 ACD/P4ADGA Bearing is crafted with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and wear.

With a dynamic radial load capacity of 78,975 lbf, 71948 ACD/P4ADGA Bearing handles demanding conditions with ease.
The universal matching design allows flexible arrangements, including back-to-back or face-to-face configurations.

71948 ACD/P4ADGA Bearing operates smoothly at speeds up to 7,500 rpm, maintaining precision in high-performance settings.
Its extra light preload (Class A) ensures minimal friction, enhancing efficiency and longevity.

Application

Industrial Uses of 71948 ACD/P4ADGA Bearing
71948 ACD/P4ADGA Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The universal matching feature allows for flexible arrangements, making it suitable for complex setups.

In aerospace applications, 71948 ACD/P4ADGA Bearing supports critical components like turbine shafts, thanks to its extra light preload and high dynamic radial load capacity. The phenolic cage adds durability in high-speed environments.

For automation systems, 71948 ACD/P4ADGA Bearing excels in robotic arms, providing smooth motion control with its P4A tolerance class. The chrome steel construction ensures long-lasting performance even under continuous operation.

Medical imaging devices benefit from 71948 ACD/P4ADGA Bearing’s precision, as it maintains stability in high-resolution scanners. The lubricated design reduces friction, enhancing reliability in sensitive equipment.

In heavy machinery, 71948 ACD/P4ADGA Bearing handles substantial radial loads, making it ideal for gearboxes and large industrial drives. Its tandem arrangement option offers versatility for different load requirements.

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