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Super Precision Angular Contact Ball Bearings 71909 ACD/P4AQBCC

Super Precision Angular Contact Ball Bearings 71909 ACD/P4AQBCC

The 71909 ACD/P4AQBCC is a super precision angular contact ball bearing with a 45mm bore and 68mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 7312 lbf and spins smoothly at speeds up to 41,000 RPM.

With a 25° contact angle and moderate preload, it offers excellent stability for angular loads. The phenolic cage ensures quiet operation and long service life.

This set includes four matched bearings (QBC arrangement), ideal for high-precision applications like machine tool spindles. It works in temperatures from -30°C to 110°C.

Weighing 0.52kg, it’s a robust choice for demanding setups. Compliant with P4A tolerance standards for reliable performance.

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Product Parameters

  • Part Number 71909 ACD/P4AQBCC
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 45 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 68 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 48 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 6.35 mm
  • Ball Qty 23
  • 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 7312 lbf
  • Static Radial Load 8100 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 0.52 kg
Super Precision Angular Contact Ball Bearings 71909 ACD/P4AQBCC dimension drawing
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Features

Engineered for Precision: 71909 ACD/P4AQBCC Bearing

71909 ACD/P4AQBCC Bearing features a 25° contact angle, optimised for high-precision angular contact applications.
Its chrome steel construction ensures durability and consistent performance under dynamic radial loads up to 7312 lbf.

The phenolic cage maintains ball alignment, reducing friction and enhancing smooth operation.
With a maximum speed of 41,000 rpm, it delivers reliable performance in demanding conditions.

71909 ACD/P4AQBCC Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its moderate preload (Class C) ensures stability and precision in matched arrangements of four bearings.

Application

Key Fields for 71909 ACD/P4AQBCC Bearing
71909 ACD/P4AQBCC Bearing is widely used in high-precision machine tools, where its moderate preload and 25° contact angle ensure accurate spindle performance. The phenolic cage reduces friction, making it suitable for high-speed operations.

In robotics, 71909 ACD/P4AQBCC Bearing provides stability in articulated arms, thanks to its matched arrangement of four bearings. The P4A tolerance class guarantees consistent movement in automated systems.

For aerospace applications, 71909 ACD/P4AQBCC Bearing handles radial and angular loads in avionics equipment. Its chrome steel construction withstands demanding conditions while maintaining precision.

Medical imaging devices benefit from 71909 ACD/P4AQBCC Bearing’s smooth operation and low noise. The lubricated design ensures long service life in critical healthcare environments.

Q&A

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