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Super Precision Angular Contact Ball Bearings 71909 ACEGA/HCP4AL

Super Precision Angular Contact Ball Bearings 71909 ACEGA/HCP4AL

The 71909 ACEGA/HCP4AL 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 2194 lbf.

With an extra light preload and P4A tolerance class, it offers exceptional accuracy for demanding tasks. The open design and phenolic cage make it suitable for speeds up to 41,000 RPM, while handling temperatures from -30°C to 110°C.

This bearing is ideal for precision machinery like spindles or CNC equipment, where low friction and high-speed performance are crucial. It can be paired in back-to-back, face-to-face, or tandem arrangements for versatile use.

Weighing just 0.12kg, it’s lightweight yet durable, with chrome steel rings for long-lasting reliability. Compliant with universal matching standards, it’s interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 71909 ACEGA/HCP4AL
  • 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 21
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • 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 2194 lbf
  • Static Radial Load 1440 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 0.12 kg
Super Precision Angular Contact Ball Bearings 71909 ACEGA/HCP4AL dimension drawing
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Features

Performance Features of 71909 ACEGA/HCP4AL Bearing

71909 ACEGA/HCP4AL Bearing is crafted with chrome steel rings and ceramic balls, offering high precision and durability.
Its 25° contact angle ensures optimal performance in angular contact applications.

The phenolic cage maintains ball alignment, reducing friction and enhancing efficiency.
With a dynamic radial load capacity of 2194 lbf, it handles demanding tasks with ease.

71909 ACEGA/HCP4AL Bearing operates smoothly at speeds up to 41,000 rpm, making it suitable for high-speed applications.
Its temperature range of -30°C to 110°C ensures reliable performance in various conditions.

The extra light preload design minimises vibration, improving overall stability.
This bearing is ideal for precision machinery requiring consistent and accurate operation.

Application

Industrial Uses of 71909 ACEGA/HCP4AL Bearing
71909 ACEGA/HCP4AL Bearing is commonly used in high-speed machine spindles, where its ceramic balls and phenolic cage reduce friction and heat buildup. The P4A tolerance class ensures precise rotation, ideal for CNC machining centres.

Where Is 71909 ACEGA/HCP4AL Bearing Used?
You’ll find 71909 ACEGA/HCP4AL Bearing in precision robotics, particularly in articulated arms requiring smooth angular movement. Its extra-light preload design minimises vibration, enhancing accuracy in automated tasks.

Built for Heavy-Duty Use: 71909 ACEGA/HCP4AL Bearing
71909 ACEGA/HCP4AL Bearing handles radial and axial loads in industrial pumps, thanks to its 25° contact angle. The chrome steel rings and ceramic balls offer durability in demanding environments.

Automotive vs Aerospace: Applications of 71909 ACEGA/HCP4AL Bearing
In automotive systems, 71909 ACEGA/HCP4AL Bearing supports electric motor shafts, while aerospace applications benefit from its lightweight design in auxiliary power units. The metric sizing ensures compatibility across industries.

Perfect Fit for Automation: 71909 ACEGA/HCP4AL Bearing
71909 ACEGA/HCP4AL Bearing excels in 3D printers, where its low friction and high-speed capability improve print quality. The open design allows for easy lubrication, extending service life in continuous operation.

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