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Super Precision Angular Contact Ball Bearings 71909 ACDGA/HCP4A

Super Precision Angular Contact Ball Bearings 71909 ACDGA/HCP4A

The 71909 ACDGA/HCP4A is a super precision angular contact ball bearing with a 45mm bore and 68mm outer diameter, crafted from durable chrome steel. Its 25° contact angle and ceramic balls ensure smooth operation under radial loads up to 2790 lbf.

With a maximum speed of 41,000 RPM, this bearing is designed for high-speed applications. The phenolic cage and extra-light preload (Class A) contribute to its quiet and efficient performance.

This open-type bearing is lubricated and works in temperatures from -30°C to 110°C. It can be used in matched sets of three, arranged back-to-back, face-to-face, or tandem.

Ideal for precision machinery like spindles or high-speed tools, it’s interchangeable with SKF bearings. Weighing just 0.12kg, it’s lightweight yet robust for its size.

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Product Parameters

  • Part Number 71909 ACDGA/HCP4A
  • 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 Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • 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 0.12 kg
Super Precision Angular Contact Ball Bearings 71909 ACDGA/HCP4A dimension drawing
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Features

How Is 71909 ACDGA/HCP4A Bearing Engineered for Reliability?

71909 ACDGA/HCP4A Bearing features a 25° contact angle, optimised for precision angular contact applications.
The chrome steel rings and ceramic balls enhance durability while reducing friction.
With a dynamic radial load capacity of 2790 lbf, it handles demanding operations smoothly.
Its phenolic cage ensures stability at high speeds, up to 41,000 rpm.

What Makes 71909 ACDGA/HCP4A Bearing Suitable for High-Temperature Applications?

71909 ACDGA/HCP4A Bearing operates reliably in temperatures ranging from -30°C to 110°C.
The ceramic balls and chrome steel construction resist thermal expansion, maintaining precision.
Its open design allows for effective lubrication, ensuring consistent performance.
The phenolic cage further enhances heat resistance, reducing wear over time.

Designed for Durability: 71909 ACDGA/HCP4A Bearing

71909 ACDGA/HCP4A Bearing uses high-quality chrome steel rings and ceramic balls for long-lasting performance.
The phenolic cage minimises friction and wear, even under high-speed conditions.
With a P4A tolerance class, it delivers exceptional precision in demanding applications.
Its extra light preload ensures smooth operation without unnecessary stress.

Application

Key Fields for 71909 ACDGA/HCP4A Bearing
71909 ACDGA/HCP4A Bearing is commonly used in high-speed machine tools, where its precision and angular contact design ensure accurate performance. The ceramic balls reduce friction, making it ideal for applications requiring smooth rotation.

In robotics, 71909 ACDGA/HCP4A Bearing supports articulated arms, providing stability and durability in repetitive movements. Its extra light preload helps maintain precision even under varying loads.

For aerospace components, 71909 ACDGA/HCP4A Bearing’s P4A tolerance class ensures reliability in critical systems. The phenolic cage offers lightweight strength, suitable for environments where weight savings are important.

In medical imaging devices, 71909 ACDGA/HCP4A Bearing’s chrome steel rings and ceramic balls deliver consistent performance. The open design allows for easy lubrication, extending service life in demanding conditions.

Q&A

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