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Super Precision Angular Contact Ball Bearings 71908 CDGB/P4A

Super Precision Angular Contact Ball Bearings 71908 CDGB/P4A

The 71908 CDGB/P4A is a super precision angular contact ball bearing, measuring 40mm by 62mm by 12mm. Made from chrome steel, it handles radial loads up to 2790 lbf and spins smoothly at speeds up to 56,000 RPM.

Its 15° contact angle and phenolic cage ensure stable performance under light preload conditions. The open design allows for easy lubrication and maintenance.

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

Weighing just 0.11kg, it’s lightweight yet durable. Compliant with P4A tolerance standards, it’s interchangeable with SKF bearings for reliable replacements.

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Product Parameters

  • Part Number 71908 CDGB/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 15°
  • 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 2790 lbf
  • Static Radial Load 1912 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 56000 rpm
  • Weight 0.11 kg
  • Price（$） 81.837
Super Precision Angular Contact Ball Bearings 71908 CDGB/P4A dimension drawing
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Features

Performance Features of 71908 CDGB/P4A Bearing

71908 CDGB/P4A Bearing is designed with a 15° 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 2790 lbf.

The phenolic cage in 71908 CDGB/P4A Bearing maintains ball alignment, reducing friction and noise during high-speed operation.
With a maximum speed of 56,000 rpm, it delivers smooth performance in precision tasks.

71908 CDGB/P4A Bearing operates efficiently in temperatures ranging from -30°C to 110°C, suitable for various environments.
Its P4A tolerance class guarantees high precision, making it ideal for demanding industrial applications.

The open design of 71908 CDGB/P4A Bearing simplifies lubrication, ensuring consistent performance over time.
Its lightweight construction at 0.11 kg adds to its versatility without compromising strength.

Application

Industrial Uses of 71908 CDGB/P4A Bearing
71908 CDGB/P4A Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The open seal type allows for efficient lubrication, extending its service life in demanding industrial settings.

What Makes 71908 CDGB/P4A Bearing a Preferred Choice?
In automotive applications, 71908 CDGB/P4A Bearing supports wheel hubs and transmission systems, thanks to its light preload and consistent performance. The phenolic cage material reduces friction, making it suitable for high-speed operations.

Perfect Fit for Automation: 71908 CDGB/P4A Bearing
For robotic arms and automated systems, 71908 CDGB/P4A Bearing provides reliable angular contact support, ensuring smooth movement. Its P4A tolerance class guarantees precision in repetitive tasks.

Medical vs Industrial: Where 71908 CDGB/P4A Bearing Excels
In medical imaging devices, 71908 CDGB/P4A Bearing offers quiet and stable operation, crucial for diagnostic accuracy. Meanwhile, in industrial pumps, its chrome steel construction handles radial loads with ease.

How Does 71908 CDGB/P4A Bearing Support High-Speed Operations?
With a maximum speed of 56,000 rpm, 71908 CDGB/P4A Bearing is ideal for applications like dental drills and small turbines. The balanced design minimizes vibration, enhancing overall efficiency.

Q&A

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