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Super Precision Angular Contact Ball Bearings 71917 ACD/P4AQBCC

Super Precision Angular Contact Ball Bearings 71917 ACD/P4AQBCC

The 71917 ACD/P4AQBCC is a super precision angular contact ball bearing with an 85mm bore and 120mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 25650 lbf and spins smoothly at speeds up to 28000 RPM.

Its 25° contact angle and matched set of four bearings provide stable performance under angular loads. The phenolic cage ensures quiet operation and long service life.

This bearing is lubricated for easy maintenance and operates in temperatures from -30°C to 110°C. Ideal for high-precision applications like machine tool spindles or robotics.

Weighing 2.12kg, it’s robust yet manageable for its size. Compliant with P4A tolerance standards for reliable performance. Interchangeable with SKF bearings for convenient replacements.

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Product Parameters

  • Part Number 71917 ACD/P4AQBCC
  • 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 Moderate / Class C
  • 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/P4AQBCC dimension drawing
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Features

Performance Features of 71917 ACD/P4AQBCC Bearing

71917 ACD/P4AQBCC Bearing is designed with a 25° contact angle, optimising load distribution for precision applications.
Its chrome steel rings and balls ensure durability under high dynamic radial loads of 25650 lbf.

The phenolic cage maintains ball alignment, reducing friction and enhancing smooth operation.
With a maximum speed of 28,000 rpm, it delivers reliable performance in high-speed scenarios.

71917 ACD/P4AQBCC Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its moderate preload (Class C) ensures stability, making it suitable for matched arrangements.

The open seal design allows for easy lubrication, extending the bearing’s service life.
Precision P4A tolerance guarantees consistent performance in demanding conditions.

Application

Super Precision Angular Contact Ball Bearings 71917 ACD/P4AQBCC are commonly used in high-speed machine tools, where their 25° contact angle ensures smooth operation under radial and axial loads. The matched arrangement of four bearings provides excellent stability for precision machining tasks.

In aerospace applications, 71917 ACD/P4AQBCC Bearings are ideal for components like helicopter transmissions, thanks to their moderate preload and high-speed capabilities. The phenolic cage reduces friction, making them suitable for demanding flight conditions.

For robotics, 71917 ACD/P4AQBCC Bearings offer reliable performance in articulated arms, where their P4A tolerance class ensures minimal vibration. The chrome steel construction also enhances durability in continuous operation.

In medical imaging devices, 71917 ACD/P4AQBCC Bearings provide quiet and precise movement, essential for accurate diagnostics. Their lubricated design ensures long service life with minimal maintenance.

Automotive testing equipment benefits from 71917 ACD/P4AQBCC Bearings due to their ability to handle dynamic radial loads. The open seal type allows for easy inspection and re-lubrication during prolonged use.

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