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Super Precision Angular Contact Ball Bearings 71924 ACD/PA9ADBC

Super Precision Angular Contact Ball Bearings 71924 ACD/PA9ADBC

The 71924 ACD/PA9ADBC is a super precision angular contact ball bearing with a 120mm bore and 165mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 26775 lbf and operates smoothly at speeds up to 10000 RPM.

Its 25° contact angle and matched arrangement (2 bearings DB) provide excellent stability under angular loads. The phenolic cage ensures durability while keeping the weight manageable at 2.3kg.

This bearing comes pre-lubricated and performs reliably in temperatures from -30°C to 110°C. Ideal for high-precision applications like machine tool spindles or aerospace components where accuracy is crucial.

The open design allows for easy maintenance, and its PA9A tolerance class ensures consistent performance. Compatible with SKF bearings for straightforward replacements.

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Product Parameters

  • Part Number 71924 ACD/PA9ADBC
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 120 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 165 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 44 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 14.288 mm
  • Ball Qty 28
  • Contact Angle 25°
  • Tolerance Class PA9A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 2 bearings <> DB
  • Number Of Bearings In Matched Set 2
  • 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 26775 lbf
  • Static Radial Load 38925 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 10000 rpm
  • Weight 2.3 kg
Super Precision Angular Contact Ball Bearings 71924 ACD/PA9ADBC dimension drawing
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Features

Performance Features of 71924 ACD/PA9ADBC Bearing

71924 ACD/PA9ADBC Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
The chrome steel rings and balls ensure durability and resistance to wear under high radial loads.

With a dynamic radial load capacity of 26775 lbf, it handles demanding conditions reliably.
The phenolic cage maintains ball alignment, reducing friction and extending service life.

Operating at speeds up to 10,000 rpm, it balances performance and efficiency.
Its moderate preload (Class C) ensures smooth operation in precision applications.

The matched arrangement of two bearings (DB) enhances stability and load distribution.
Its temperature range of -30°C to 110°C makes it suitable for varied environments.

Application

Common Applications of 71924 ACD/PA9ADBC Bearing
71924 ACD/PA9ADBC Bearing is widely used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The moderate preload and phenolic cage make it suitable for demanding machining operations.

In aerospace applications, 71924 ACD/PA9ADBC Bearing supports critical components like turbine shafts, thanks to its ability to handle both radial and axial loads. The chrome steel construction provides durability in high-speed environments.

For robotics, 71924 ACD/PA9ADBC Bearing is ideal for joint mechanisms, offering smooth movement and long service life. The matched arrangement of two bearings enhances stability in dynamic applications.

Where Is 71924 ACD/PA9ADBC Bearing Used?
You’ll often find 71924 ACD/PA9ADBC Bearing in medical imaging devices, where its precision and reliability are essential for clear diagnostics. The open design allows for easy lubrication, ensuring consistent performance.

In industrial automation, 71924 ACD/PA9ADBC Bearing is a go-to choice for high-speed conveyor systems. Its ability to handle moderate preloads makes it versatile for various production line setups.

Built for Heavy-Duty Use: 71924 ACD/PA9ADBC Bearing
71924 ACD/PA9ADBC Bearing excels in wind turbine gearboxes, where its robust design withstands variable loads and harsh conditions. The phenolic cage reduces friction, enhancing efficiency.

For printing machinery, 71924 ACD/PA9ADBC Bearing ensures precise paper handling, thanks to its angular contact and high-speed capabilities. The metric sizing fits seamlessly into European and Asian equipment.

Automotive vs Aerospace: Applications of 71924 ACD/PA9ADBC Bearing
In automotive systems, 71924 ACD/PA9ADBC Bearing is used in high-performance transmissions, providing smooth gear shifts. Its chrome steel rings and balls offer durability under heavy loads.

In aerospace, 71924 ACD/PA9ADBC Bearing supports landing gear mechanisms, where precision and reliability are critical. The matched bearing arrangement ensures consistent performance in extreme conditions.

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