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Super Precision Angular Contact Ball Bearings 71918 ACDGA/P4A

Super Precision Angular Contact Ball Bearings 71918 ACDGA/P4A

The 71918 ACDGA/P4A is a super precision angular contact ball bearing with a 90mm bore and 125mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 9945 lbf and operates smoothly at speeds up to 15000 RPM.

With a 25° contact angle and open design, it offers excellent performance in high-speed applications. The phenolic cage ensures quiet operation and long service life.

This bearing is suitable for temperatures from -30°C to 110°C and comes pre-lubricated for immediate use. Its P4A tolerance class guarantees high precision.

Ideal for machine tools or spindle applications, it can be arranged back-to-back, face-to-face, or tandem. Weighing 0.55kg, it’s a robust yet lightweight choice for demanding setups.

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Product Parameters

  • Part Number 71918 ACDGA/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 90 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 125 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 18 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 11.112 mm
  • Ball Qty 26
  • 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 Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 9945 lbf
  • Static Radial Load 10800 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 15000 rpm
  • Weight 0.55 kg
  • Price（$） 246.15
Super Precision Angular Contact Ball Bearings 71918 ACDGA/P4A dimension drawing
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Features

Performance Features of 71918 ACDGA/P4A Bearing

71918 ACDGA/P4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction for smoother operation.

With a dynamic radial load capacity of 9945 lbf, 71918 ACDGA/P4A Bearing handles demanding conditions reliably.
The extra light preload (Class A) enhances precision, making it suitable for high-speed applications up to 15,000 rpm.

71918 ACDGA/P4A Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its universal matching capability allows flexible arrangement options, including back-to-back and face-to-face configurations.

Application

Key Fields for 71918 ACDGA/P4A Bearing
71918 ACDGA/P4A Bearing is widely used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The extra light preload helps maintain stability during high-speed operations.

In aerospace applications, 71918 ACDGA/P4A Bearing supports critical components like turbine shafts, thanks to its P4A tolerance class. The phenolic cage reduces friction, making it suitable for demanding environments.

For automation systems, 71918 ACDGA/P4A Bearing excels in robotic arms, providing smooth movement under angular loads. Its chrome steel construction offers durability, while the open design allows for easy lubrication.

Medical imaging devices benefit from 71918 ACDGA/P4A Bearing’s precision, ensuring reliable performance in scanners and diagnostic equipment. The wide temperature range also makes it adaptable to various clinical settings.

In electric motors, 71918 ACDGA/P4A Bearing handles high radial loads efficiently, contributing to longer service life. The metric sizing ensures compatibility with a range of motor designs.

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