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Super Precision Angular Contact Ball Bearings 71909 ACE/P4ADGA

Super Precision Angular Contact Ball Bearings 71909 ACE/P4ADGA

The 71909 ACE/P4ADGA is a super precision angular contact ball bearing with a 45mm bore and 68mm outer diameter, crafted from high-quality chrome steel. It features a 25° contact angle and is designed for angular contact loads, handling up to 3578 lbf dynamically.

Its open design and phenolic cage ensure smooth operation at speeds up to 41,000 RPM, while the extra light preload (Class A) enhances precision. The bearing is lubricated for easy maintenance and performs well in temperatures from -30°C to 110°C.

This model comes in a matched set of two, allowing universal matching for back-to-back, face-to-face, or tandem arrangements. Ideal for high-precision applications like machine tool spindles or high-speed robotics.

Weighing just 0.26kg, it’s lightweight yet robust, and interchangeable with SKF bearings for convenient replacements. Compliant with P4A tolerance standards for reliable performance.

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Product Parameters

  • Part Number 71909 ACE/P4ADGA
  • 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 Universal matching
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Extra light / Class A
  • 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
  • Price（$） 173.97
Super Precision Angular Contact Ball Bearings 71909 ACE/P4ADGA dimension drawing
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Features

Performance Features of 71909 ACE/P4ADGA Bearing

71909 ACE/P4ADGA Bearing is crafted with chrome steel rings and balls, offering excellent resistance to wear.
Its dynamic radial load capacity of 3578 lbf ensures reliable performance in precision applications.

The phenolic cage maintains ball alignment, reducing friction and enhancing durability.
With a maximum speed of 41,000 rpm, it delivers smooth operation in high-speed settings.

71909 ACE/P4ADGA Bearing operates efficiently in temperatures ranging from -30°C to 110°C.
Its universal matching design allows for versatile installation in back-to-back or face-to-face arrangements.

The extra light preload ensures minimal friction, contributing to longer service life.
Precision-ground to P4A tolerance, it guarantees consistent performance in demanding conditions.

Application

Key Fields for 71909 ACE/P4ADGA Bearing
In industrial settings, 71909 ACE/P4ADGA Bearing is commonly used in high-speed spindles and machine tools, where its precision and angular contact design ensure accurate performance. The open seal type allows for efficient lubrication, extending its service life.

Where Is 71909 ACE/P4ADGA Bearing Used?
You’ll often find 71909 ACE/P4ADGA Bearing in automotive applications like electric motors and transmissions, thanks to its ability to handle both radial and axial loads. Its universal matching feature makes it versatile for various configurations.

Perfect Fit for Automation: 71909 ACE/P4ADGA Bearing
For robotics and automation systems, 71909 ACE/P4ADGA Bearing provides reliable motion control in components like robotic arms and CNC machines. The phenolic cage material reduces friction, enhancing smooth operation.

Medical vs Industrial: Where 71909 ACE/P4ADGA Bearing Excels
In medical devices such as dental drills and imaging equipment, 71909 ACE/P4ADGA Bearing offers quiet and precise movement. Its P4A tolerance class ensures consistent performance in demanding environments.

Essential Roles of 71909 ACE/P4ADGA Bearing
In consumer electronics like high-end printers, 71909 ACE/P4ADGA Bearing supports high-speed rotations with minimal noise. The chrome steel construction adds durability for long-term use.

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