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Super Precision Angular Contact Ball Bearings 71909 ACE/P4ADT

Super Precision Angular Contact Ball Bearings 71909 ACE/P4ADT

The 71909 ACE/P4ADT 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 3578 lbf and reaches speeds of 41,000 RPM, making it suitable for high-performance applications.

Its 25° contact angle and matched arrangement (2 bearings << DT) provide excellent stability under angular loads. The open design and phenolic cage ensure smooth operation and easy maintenance. This bearing is ideal for precision machinery like spindles or CNC equipment, where accuracy and speed are crucial. It operates reliably in temperatures from -30°C to 110°C. Weighing just 0.26kg, it’s lightweight yet robust. Compliant with P4A tolerance standards, it’s interchangeable with SKF bearings for easy replacements.

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Product Parameters

  • Part Number 71909 ACE/P4ADT
  • 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 24 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 6.35 mm
  • Ball Qty 21
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 2 bearings << DT
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 3578 lbf
  • Static Radial Load 2902 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 0.26 kg
Super Precision Angular Contact Ball Bearings 71909 ACE/P4ADT dimension drawing
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Features

Performance Features of 71909 ACE/P4ADT Bearing

71909 ACE/P4ADT Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel construction ensures durability and resistance to wear under dynamic radial loads up to 3578 lbf.

The phenolic cage maintains ball alignment, reducing friction and enhancing operational smoothness.
With a maximum speed of 41,000 rpm, it delivers reliable performance in high-speed scenarios.

71909 ACE/P4ADT Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its precision P4A tolerance class ensures consistent performance in demanding applications.

The matched arrangement of two bearings provides added stability and load-handling capacity.
This design makes it suitable for applications requiring high precision and reliability.

Application

Industrial Uses of 71909 ACE/P4ADT Bearing
71909 ACE/P4ADT Bearing is commonly used in high-precision machine tools, where its 25° contact angle ensures accurate radial and axial load handling. The matched arrangement of two bearings enhances stability in demanding applications like CNC spindles.

In automotive systems, 71909 ACE/P4ADT Bearing supports components such as wheel hubs and transmissions, offering reliable performance under high speeds. Its phenolic cage reduces friction, making it suitable for long-term use in vehicles.

For automation equipment, 71909 ACE/P4ADT Bearing excels in robotic arms and linear guides, where its P4A tolerance class guarantees precision. The open design allows for easy lubrication, maintaining smooth operation in continuous-use scenarios.

Medical imaging devices benefit from 71909 ACE/P4ADT Bearing’s chrome steel construction, which ensures durability and consistent performance. The low-temperature tolerance makes it ideal for sensitive environments like MRI machines.

In consumer electronics, 71909 ACE/P4ADT Bearing can be found in high-speed printers and scanners, where its balanced load capacity improves device longevity. The metric sizing ensures compatibility with a wide range of compact machinery.

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