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Super Precision Angular Contact Ball Bearings 71917 ACD/P4AQBCD

Super Precision Angular Contact Ball Bearings 71917 ACD/P4AQBCD

The 71917 ACD/P4AQBCD is a super precision angular contact ball bearing with an 85mm bore and 120mm outer diameter, crafted from durable chrome steel. It handles heavy radial loads up to 25650 lbf and spins smoothly at speeds up to 28000 RPM.

With a 25° contact angle and heavy preload, it offers excellent stability for high-precision applications. The phenolic cage ensures quiet operation and long service life, even under demanding conditions.

This set includes four matched bearings, ideal for applications requiring tight tolerances like machine tool spindles or high-speed robotics. It operates reliably in temperatures from -30°C to 110°C.

Weighing 2.12kg, it’s robust yet manageable for its size. Compliant with P4A tolerance standards, it’s a dependable choice for precision engineering needs.

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Product Parameters

  • Part Number 71917 ACD/P4AQBCD
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 85 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 120 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 72 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 11.112 mm
  • Ball Qty 25
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 4 bearings <<>> QBC
  • Number Of Bearings In Matched Set 4
  • Universal Matching Bearing No
  • Preload Heavy / Class D
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 25650 lbf
  • Static Radial Load 41175 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 28000 rpm
  • Weight 2.12 kg
Super Precision Angular Contact Ball Bearings 71917 ACD/P4AQBCD dimension drawing
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Features

Performance Features of 71917 ACD/P4AQBCD Bearing

71917 ACD/P4AQBCD Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.

Its chrome steel rings and balls ensure durability, while the phenolic cage provides stability at high speeds.

With a dynamic radial load capacity of 25650 lbf, it handles demanding conditions reliably.

The P4A tolerance class guarantees precision, making it suitable for high-performance machinery.

Application

Key Fields for 71917 ACD/P4AQBCD Bearing
71917 ACD/P4AQBCD Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The heavy preload and P4A tolerance class make it suitable for demanding industrial environments.

In aerospace applications, 71917 ACD/P4AQBCD Bearing supports components like helicopter rotors and jet engine parts, thanks to its high dynamic radial load capacity. The matched arrangement of four bearings provides stability under extreme conditions.

For robotics, 71917 ACD/P4AQBCD Bearing’s phenolic cage and chrome steel construction offer durability in repetitive motion systems. Its ability to handle high speeds makes it a reliable choice for automated assembly lines.

Medical imaging devices benefit from 71917 ACD/P4AQBCD Bearing’s precision and smooth operation, ensuring consistent performance in critical diagnostics. The open design allows for easy lubrication, extending service life in high-use scenarios.

Q&A

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