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Super Precision Angular Contact Ball Bearings 71908 ACDGB/P4A

Super Precision Angular Contact Ball Bearings 71908 ACDGB/P4A

The 71908 ACDGB/P4A is a super precision angular contact ball bearing with a 40mm bore and 62mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 2632 lbf and spins smoothly at speeds up to 41,000 RPM.

Its 25° contact angle and light preload ensure precise performance, while the phenolic cage reduces friction. The open design allows for easy lubrication and maintenance.

This bearing is ideal for high-speed applications like machine tool spindles or precision instruments. It can be arranged in back-to-back, face-to-face, or tandem configurations for versatile use.

Weighing just 0.11kg, it’s lightweight yet robust. Compliant with P4A tolerance standards, it offers reliable accuracy for demanding tasks.

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Product Parameters

  • Part Number 71908 ACDGB/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 40 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 62 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 3
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 2632 lbf
  • Static Radial Load 1800 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 0.11 kg
Super Precision Angular Contact Ball Bearings 71908 ACDGB/P4A dimension drawing
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Features

Performance Features of 71908 ACDGB/P4A Bearing

71908 ACDGB/P4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel construction ensures durability and resistance to wear under dynamic radial loads up to 2632 lbf.

The phenolic cage maintains ball alignment, reducing friction and enabling smooth operation at speeds up to 41,000 rpm.
With a precision tolerance class of P4A, it delivers consistent performance in high-speed applications.

71908 ACDGB/P4A Bearing operates efficiently in temperatures ranging from -30°C to 110°C.
Its open design allows for easy lubrication, ensuring long service life with minimal maintenance.

Application

Industrial Uses of 71908 ACDGB/P4A Bearing
71908 ACDGB/P4A Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The light preload and P4A tolerance class make it ideal for applications demanding minimal vibration.

Where Is 71908 ACDGB/P4A Bearing Used?
In automotive systems, 71908 ACDGB/P4A Bearing supports components like wheel hubs and transmissions, thanks to its ability to handle both radial and axial loads. The phenolic cage adds durability in high-speed scenarios.

Perfect Fit for Automation: 71908 ACDGB/P4A Bearing
For robotics and automation, 71908 ACDGB/P4A Bearing provides smooth motion in robotic arms and CNC machines. Its chrome steel construction ensures long-lasting performance even under continuous use.

Medical vs Industrial: Where 71908 ACDGB/P4A Bearing Excels
In medical imaging devices, 71908 ACDGB/P4A Bearing offers reliable precision, while in industrial settings, it excels in high-speed spindles. The open design allows for easy lubrication, extending its service life.

Q&A

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