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Super Precision Angular Contact Ball Bearings S71913 ACDGC/P4A

Super Precision Angular Contact Ball Bearings S71913 ACDGC/P4A

The S71913 ACDGC/P4A is a super precision angular contact ball bearing with a 65mm bore and 90mm outer diameter, crafted from durable chrome steel. It features a 25° contact angle and comes sealed for protection, with moderate preload for stable performance.

This bearing handles radial loads up to 4388 lbf and spins smoothly at speeds up to 31,000 RPM. Its phenolic cage ensures quiet operation and long service life, even in temperatures from -30°C to 110°C.

The P4A tolerance class guarantees high precision, making it ideal for applications like machine tool spindles or high-speed robotics. It can be paired in back-to-back, face-to-face, or tandem arrangements for versatile use.

Weighing just 0.21kg, it’s lightweight yet robust, and interchangeable with SKF bearings for easy replacement. Grease lubrication ensures low maintenance, while the sealed design keeps contaminants out.

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Product Parameters

  • Part Number S71913 ACDGC/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 65 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 90 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 13 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 26
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Sealed
  • 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 4388 lbf
  • Static Radial Load 3600 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 31000 rpm
  • Weight 0.21 kg
Super Precision Angular Contact Ball Bearings S71913 ACDGC/P4A dimension drawing
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Features

Performance Features of S71913 ACDGC/P4A Bearing

S71913 ACDGC/P4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability and precision under dynamic radial loads up to 4388 lbf.

The phenolic cage maintains ball alignment, reducing friction and enhancing operational smoothness.
With a maximum speed of 31,000 rpm, it delivers reliable performance in high-speed scenarios.

S71913 ACDGC/P4A Bearing operates efficiently in temperatures ranging from -30°C to 110°C.
Its sealed design and grease lubrication minimise maintenance needs, ensuring long service life.

The P4A tolerance class guarantees high precision, making it suitable for demanding applications.
Its universal matching capability allows flexible arrangements like back-to-back or face-to-face configurations.

Application

How Does S71913 ACDGC/P4A Bearing Improve Performance?
S71913 ACDGC/P4A Bearing is commonly used in high-speed machine tools, where its 25° contact angle ensures precise handling of combined radial and axial loads. The phenolic cage reduces friction, making it suitable for continuous operation.

In robotics, S71913 ACDGC/P4A Bearing supports articulated arms, providing smooth movement and accurate positioning. Its sealed design helps keep contaminants out, extending service life in demanding environments.

For medical imaging devices, S71913 ACDGC/P4A Bearing’s chrome steel construction offers reliable performance under moderate preload. The P4A tolerance class ensures consistent accuracy, which is vital for diagnostic equipment.

Automotive vs Aerospace: Applications of S71913 ACDGC/P4A Bearing
In automotive applications, S71913 ACDGC/P4A Bearing is found in gearboxes, where its high-speed capability enhances shifting performance. The grease lubrication ensures quiet operation, ideal for passenger vehicles.

Aerospace systems benefit from S71913 ACDGC/P4A Bearing’s ability to handle dynamic loads in compact spaces. Its universal matching feature allows for flexible configurations in critical flight components.

Q&A

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