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Super Precision Angular Contact Ball Bearings S71913 ACD/P4AQBCA

Super Precision Angular Contact Ball Bearings S71913 ACD/P4AQBCA

The S71913 ACD/P4AQBCA is a super precision angular contact ball bearing with a 65mm bore and 90mm outer diameter, crafted from high-quality chrome steel. It features a 25° contact angle and comes sealed for protection, with a matched set of four bearings for balanced performance.

This bearing handles radial loads up to 11700 lbf and spins smoothly at speeds up to 31000 RPM. Its phenolic cage ensures quiet operation and durability, while the extra-light preload (Class A) enhances precision.

The sealed design keeps grease in and contaminants out, making it low-maintenance. Ideal for high-precision applications like machine tool spindles or high-speed robotics, where accuracy and reliability are key.

With a temperature range of -30°C to 110°C, it performs well in various environments. Weighing 0.84kg, it’s robust yet manageable for its size. Compliant with P4A tolerance standards for exceptional precision.

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Product Parameters

  • Part Number S71913 ACD/P4AQBCA
  • 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 52 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 4 bearings <<>> QBC
  • Number Of Bearings In Matched Set 4
  • Universal Matching Bearing No
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 11700 lbf
  • Static Radial Load 14400 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 31000 rpm
  • Weight 0.84 kg
Super Precision Angular Contact Ball Bearings S71913 ACD/P4AQBCA dimension drawing
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Features

Performance Features of S71913 ACD/P4AQBCA Bearing

S71913 ACD/P4AQBCA Bearing is designed with a 25° contact angle, optimising load distribution for precision applications.
The chrome steel rings and balls enhance durability, while the phenolic cage ensures smooth operation at high speeds.

With a dynamic radial load capacity of 11700 lbf, S71913 ACD/P4AQBCA Bearing handles demanding conditions reliably.
Its sealed design and grease lubrication reduce maintenance needs, extending service life.

S71913 ACD/P4AQBCA Bearing operates efficiently at speeds up to 31,000 rpm, making it suitable for high-performance machinery.
The matched set of four bearings ensures consistent performance in angular contact applications.

Application

Where Is S71913 ACD/P4AQBCA Bearing Used?
S71913 ACD/P4AQBCA Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The sealed construction keeps contaminants out, making it reliable for long-term use.

In robotics, S71913 ACD/P4AQBCA Bearing supports articulated arms, providing smooth movement with minimal friction. Its phenolic cage reduces weight while maintaining strength, ideal for repetitive motions.

For aerospace applications, S71913 ACD/P4AQBCA Bearing handles both radial and axial loads in components like landing gear systems. The extra-light preload ensures consistent performance under varying operational conditions.

In medical imaging devices, S71913 ACD/P4AQBCA Bearing’s precision and low noise make it suitable for sensitive equipment. The grease lubrication extends service life, reducing maintenance needs.

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