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Super Precision Angular Contact Ball Bearings 71909 ACDGC/P4A

Super Precision Angular Contact Ball Bearings 71909 ACDGC/P4A

The 71909 ACDGC/P4A 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 2790 lbf and spins smoothly at high speeds up to 41000 RPM.

With a 25° contact angle and moderate preload, it offers stability for angular loads. The phenolic cage ensures quiet operation and long service life, even in temperatures from -30°C to 110°C.

This bearing is part of a universal matching set, suitable for back-to-back, face-to-face, or tandem arrangements. Ideal for precision applications like machine tool spindles or high-speed robotics.

Weighing just 0.13kg, it’s lightweight yet robust, and interchangeable with SKF bearings for easy replacement. Compliant with P4A tolerance class for exceptional accuracy.

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Product Parameters

  • Part Number 71909 ACDGC/P4A
  • 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 12 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 No
  • Number Of Bearings In Matched Set 3
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 2790 lbf
  • Static Radial Load 2025 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 0.13 kg
Super Precision Angular Contact Ball Bearings 71909 ACDGC/P4A dimension drawing
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Features

Performance Features of 71909 ACDGC/P4A Bearing

71909 ACDGC/P4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability and consistent performance under dynamic radial loads up to 2790 lbf.

The phenolic cage in 71909 ACDGC/P4A Bearing reduces friction and wear, enhancing operational efficiency.
With a maximum speed of 41,000 rpm, it delivers reliable high-speed performance.

71909 ACDGC/P4A Bearing operates efficiently in temperatures ranging from -30°C to 110°C.
Its precision P4A tolerance class ensures smooth and accurate rotation for demanding applications.

The moderate preload (Class C) of 71909 ACDGC/P4A Bearing provides stability without excessive friction.
Its universal matching capability allows flexible arrangement in back-to-back, face-to-face, or tandem configurations.

Weighing just 0.13 kg, 71909 ACDGC/P4A Bearing offers a balance of strength and lightweight design.
Its open seal type facilitates easy lubrication maintenance while keeping contaminants out.

Application

Key Fields for 71909 ACDGC/P4A Bearing
In industrial machinery, 71909 ACDGC/P4A Bearing is commonly used in high-speed spindles and precision tools, where its 25° contact angle ensures stable performance under angular loads. The phenolic cage offers quiet operation, ideal for noise-sensitive environments.

Automotive Uses of 71909 ACDGC/P4A Bearing
For automotive applications, 71909 ACDGC/P4A Bearing fits well in gearboxes and wheel hubs, thanks to its moderate preload and chrome steel construction. Its metric sizing makes it a versatile choice for various vehicle designs.

How Does 71909 ACDGC/P4A Bearing Improve Performance?
In medical imaging devices, 71909 ACDGC/P4A Bearing provides reliable rotation with minimal vibration, crucial for clear scans. The P4A tolerance class ensures consistent accuracy in demanding conditions.

Built for Heavy-Duty Use: 71909 ACDGC/P4A Bearing
For robotics and automation, 71909 ACDGC/P4A Bearing supports smooth movement in robotic arms and CNC machines. Its high-speed capability (41,000 rpm) makes it suitable for dynamic operations.

Light-Duty vs Heavy-Duty: Best Uses for 71909 ACDGC/P4A Bearing
In consumer electronics like printers, 71909 ACDGC/P4A Bearing offers durability without compromising on precision. Its open design allows for easy lubrication, extending service life in everyday devices.

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