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Super Precision Angular Contact Ball Bearings 71909 ACD/HCP4ADGA

Super Precision Angular Contact Ball Bearings 71909 ACD/HCP4ADGA

The 71909 ACD/HCP4ADGA is a super precision angular contact ball bearing with a 45mm bore and 68mm outer diameter, designed for high-speed applications. Its 25° contact angle and ceramic balls ensure smooth operation under radial loads up to 4478 lbf.

The bearing features a phenolic cage and comes pre-lubricated, making it ready for use straight out of the box. With a maximum speed of 41,000 RPM, it’s ideal for demanding environments like machine tools or high-performance motors.

This model is part of a universal matching set, allowing flexible arrangements like back-to-back or face-to-face mounting. Its P4A tolerance class guarantees exceptional accuracy for precision engineering tasks.

Weighing just 0.24kg, it operates efficiently in temperatures from -30°C to 110°C. Compatible with SKF bearings, it’s a reliable choice for replacements or upgrades in precision machinery.

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Product Parameters

  • Part Number 71909 ACD/HCP4ADGA
  • 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 23
  • 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 Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 4478 lbf
  • Static Radial Load 4050 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 0.24 kg
Super Precision Angular Contact Ball Bearings 71909 ACD/HCP4ADGA dimension drawing
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Features

How Does 71909 ACD/HCP4ADGA Bearing Achieve Super Precision?

71909 ACD/HCP4ADGA Bearing features a 25° contact angle and ceramic balls, ensuring high precision in angular contact applications.
Its phenolic cage maintains ball alignment, reducing friction and enhancing performance.

With a dynamic radial load capacity of 4478 lbf, it handles demanding operations smoothly.
The P4A tolerance class guarantees consistent accuracy, even at high speeds up to 41,000 rpm.

Universal matching allows flexible arrangements like back-to-back or face-to-face setups.
This makes 71909 ACD/HCP4ADGA Bearing versatile for various precision engineering needs.

Application

Common Applications of 71909 ACD/HCP4ADGA Bearing
71909 ACD/HCP4ADGA Bearing is widely used in high-speed machine tools, where its precision angular contact design ensures accurate spindle rotation. The ceramic balls reduce friction, making it ideal for applications demanding smooth operation.

In robotics, 71909 ACD/HCP4ADGA Bearing supports articulated arms, providing stability and load handling in dynamic movements. Its universal matching feature allows flexible installation in various configurations.

For aerospace components, 71909 ACD/HCP4ADGA Bearing’s phenolic cage and chrome steel rings offer durability in extreme conditions. The extra light preload ensures minimal vibration, crucial for sensitive instrumentation.

Where Is 71909 ACD/HCP4ADGA Bearing Used?
You’ll often find 71909 ACD/HCP4ADGA Bearing in dental drills, where its high-speed capability and precision are essential. The open design allows for easy lubrication, extending service life.

In packaging machinery, 71909 ACD/HCP4ADGA Bearing handles rapid movements with minimal heat generation. Its P4A tolerance class ensures consistent performance in repetitive tasks.

Built for Heavy-Duty Use: 71909 ACD/HCP4ADGA Bearing
71909 ACD/HCP4ADGA Bearing excels in industrial pumps, managing both radial and axial loads effortlessly. The ceramic balls and phenolic cage combination resists wear even in harsh environments.

For electric motors, 71909 ACD/HCP4ADGA Bearing’s low friction design improves energy efficiency. Its temperature range makes it suitable for both indoor and outdoor applications.

Automotive vs Aerospace: Applications of 71909 ACD/HCP4ADGA Bearing
In automotive transmissions, 71909 ACD/HCP4ADGA Bearing supports high-speed shafts with minimal noise. Its metric sizing ensures compatibility with global vehicle designs.

For aerospace actuators, 71909 ACD/HCP4ADGA Bearing’s lightweight construction and precision are critical. The tandem arrangement option allows for custom load distribution in compact spaces.

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