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Super Precision Angular Contact Ball Bearings 71809 ACDGA/HCP4

Super Precision Angular Contact Ball Bearings 71809 ACDGA/HCP4

The 71809 ACDGA/HCP4 is a super precision angular contact ball bearing with a 45mm bore and 58mm outer diameter, measuring just 7mm wide. Made from chrome steel with ceramic balls, it offers smooth operation and durability.

It handles radial loads up to 1040 lbf and spins at speeds up to 46,000 RPM, making it suitable for high-speed applications. The phenolic cage ensures stability and reduces friction.

With a 25° contact angle and extra-light preload, it provides precise performance in demanding setups. Its open design allows easy lubrication and maintenance.

Ideal for precision machinery like spindles or CNC equipment, where accuracy and speed are crucial. Compliant with P4 tolerance standards, it’s a reliable choice for engineers.

Weighing only 0.037kg, it’s lightweight yet robust. It can be used in matched sets for back-to-back, face-to-face, or tandem arrangements.

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Product Parameters

  • Part Number 71809 ACDGA/HCP4
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 45 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 58 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 7 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 3.175 mm
  • Ball Qty 31
  • Contact Angle 25°
  • Tolerance Class P4
  • 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 Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 1040 lbf
  • Static Radial Load 1125 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 46000 rpm
  • Weight 0.037 kg
Super Precision Angular Contact Ball Bearings 71809 ACDGA/HCP4 dimension drawing
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Features

Performance Features of 71809 ACDGA/HCP4 Bearing

71809 ACDGA/HCP4 Bearing features a 25° contact angle, optimised for precision angular contact applications.
The ceramic balls and chrome steel rings enhance durability while reducing friction for smoother operation.

With a dynamic radial load capacity of 1040 lbf, it handles demanding conditions reliably.
Its phenolic cage ensures stability, even at high speeds up to 46,000 rpm.

The extra-light preload (Class A) improves accuracy, making it suitable for precision machinery.
Its universal matching capability allows flexible arrangements like back-to-back or tandem setups.

Operating between -30°C to 110°C, 71809 ACDGA/HCP4 Bearing performs consistently in varied environments.
The open design simplifies lubrication, ensuring long service life with minimal maintenance.

Application

Where Is 71809 ACDGA/HCP4 Bearing Used?
71809 ACDGA/HCP4 Bearing is commonly used in high-speed machine tool spindles, where its ceramic balls and phenolic cage reduce friction and heat buildup. The P4 tolerance ensures precision in demanding industrial applications.

In robotics, 71809 ACDGA/HCP4 Bearing provides smooth motion for articulated arms, thanks to its angular contact design. The extra-light preload helps maintain accuracy during repetitive movements.

For aerospace components, 71809 ACDGA/HCP4 Bearing’s lightweight construction and high-speed capability make it suitable for flight control systems. Its temperature range also handles varying operational conditions.

In medical imaging devices, 71809 ACDGA/HCP4 Bearing’s low vibration and quiet operation enhance performance. The open design allows for easy lubrication, extending service life.

Q&A

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