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Super Precision Angular Contact Ball Bearings 71913 ACB/P4A

Super Precision Angular Contact Ball Bearings 71913 ACB/P4A

The 71913 ACB/P4A is a super precision angular contact ball bearing with a 65mm bore and 90mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 2239 lbf and operates smoothly at speeds up to 28,000 RPM.

With a 25° contact angle and open design, it offers excellent performance for angular loads. The phenolic cage ensures durability and reduces friction during high-speed rotations.

This bearing is available with preload and matched arrangements, making it versatile for precise applications. Ideal for machine tools or spindle drives where accuracy is key.

Weighing just 0.21kg, it’s lightweight yet robust. Compliant with P4 tolerance standards, it ensures reliable performance in temperatures from -30°C to 110°C.

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Product Parameters

  • Part Number 71913 ACB/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 65 mm
  • Bore Dia Tolerance -0.007mm to 0
  • Outer Dia 90 mm
  • Outer Dia Tolerance -0.008mm to 0
  • Width 13 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 5.556 mm
  • Ball Qty 32
  • Contact Angle 25°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Available
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 2239 lbf
  • Static Radial Load 1980 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 28000 rpm
  • Weight 0.21 kg
  • Price（$） 551.232
Super Precision Angular Contact Ball Bearings 71913 ACB/P4A dimension drawing
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Features

Performance Features of 71913 ACB/P4A Bearing

71913 ACB/P4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls provide durability and consistent performance under dynamic radial loads up to 2239 lbf.

The phenolic cage ensures smooth operation at high speeds, reaching up to 28,000 rpm.
This design also reduces friction, enhancing efficiency in precision tasks.

With a P4 tolerance class, 71913 ACB/P4A Bearing offers reliable accuracy for demanding industrial applications.
Its open seal type allows for easy lubrication, maintaining performance over time.

The bearing operates effectively in temperatures ranging from -30° to 110°C, ensuring versatility in various environments.
Its matched arrangement option provides additional stability for complex setups.

Application

Perfect Fit for Automation: 71913 ACB/P4A Bearing
In robotics, 71913 ACB/P4A Bearing ensures smooth motion control in articulated arms, thanks to its precise angular contact design. The phenolic cage reduces friction, making it ideal for repetitive tasks.

How Does 71913 ACB/P4A Bearing Improve Performance?
Machine tools benefit from 71913 ACB/P4A Bearing’s high-speed capability and P4 tolerance, which enhance spindle accuracy. Its 25° contact angle efficiently handles combined radial and axial loads.

Industrial Uses of 71913 ACB/P4A Bearing
This bearing is commonly used in CNC machining centres, where its chrome steel construction withstands rigorous operations. The open seal design allows for easy relubrication, extending service life.

Medical vs Industrial: Where 71913 ACB/P4A Bearing Excels
While 71913 ACB/P4A Bearing performs reliably in medical imaging devices, its true strength lies in industrial gearboxes. The matched arrangement option ensures consistent performance in paired installations.

What Makes 71913 ACB/P4A Bearing a Preferred Choice?
Aerospace applications favour 71913 ACB/P4A Bearing for its lightweight phenolic cage and high-speed tolerance. The 32-ball configuration distributes loads evenly, reducing wear over time.

Q&A

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