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Super Precision Angular Contact Ball Bearings 71909 ACE/HCP4ADGA

Super Precision Angular Contact Ball Bearings 71909 ACE/HCP4ADGA

The 71909 ACE/HCP4ADGA is a super precision angular contact ball bearing with a 45mm bore and 68mm outer diameter, crafted from durable chrome steel and ceramic balls. It handles radial loads up to 3578 lbf and spins smoothly at high speeds up to 41,000 RPM.

Its 25° contact angle and universal matching design allow flexible arrangements like back-to-back or face-to-face, ideal for precision applications. The phenolic cage ensures quiet operation and long service life.

With an extra-light preload (Class A) and P4A tolerance, it offers exceptional accuracy for demanding tasks. Suitable for machine tools, spindles, or high-speed equipment where precision is key.

Weighing just 0.23kg, it’s lightweight yet robust, and operates reliably between -30°C and 110°C. Comes as a matched set of two bearings for balanced performance.

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Product Parameters

  • Part Number 71909 ACE/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 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 Ceramic
  • 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 0.23 kg
Super Precision Angular Contact Ball Bearings 71909 ACE/HCP4ADGA dimension drawing
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Features

Performance Features of 71909 ACE/HCP4ADGA Bearing

71909 ACE/HCP4ADGA Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and ceramic balls enhance durability while reducing friction.

The phenolic cage maintains ball alignment, ensuring smooth operation even at high speeds up to 41,000 rpm.
With universal matching capability, it offers flexibility in back-to-back or face-to-face arrangements.

71909 ACE/HCP4ADGA Bearing operates efficiently in temperatures ranging from -30°C to 110°C.
Its extra light preload (Class A) ensures precision performance in demanding conditions.

Application

Key Fields for 71909 ACE/HCP4ADGA Bearing
71909 ACE/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 ACE/HCP4ADGA Bearing supports articulated arms, providing stability during repetitive movements. Its universal matching feature allows flexible arrangement in compact spaces.

For aerospace components, 71909 ACE/HCP4ADGA Bearing handles radial and axial loads efficiently, thanks to its phenolic cage and chrome steel rings. The extra-light preload further enhances performance in critical systems.

Medical imaging devices benefit from 71909 ACE/HCP4ADGA Bearing’s low vibration and high-speed capabilities. The P4A tolerance class ensures reliability in sensitive diagnostic equipment.

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