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Super Precision Angular Contact Ball Bearings 71908 CDGA/P4A

Super Precision Angular Contact Ball Bearings 71908 CDGA/P4A

The 71908 CDGA/P4A is a super precision angular contact ball bearing, measuring 40mm by 62mm by 12mm. Made from chrome steel, it features a 15° contact angle and is lubricated for smooth operation.

It handles dynamic radial loads up to 2790 lbf and spins at speeds up to 56,000 RPM. The phenolic cage ensures durability, while the P4A tolerance class guarantees high precision.

This bearing is ideal for applications requiring extra light preload, such as machine tools or high-speed spindles. It can be arranged back-to-back, face-to-face, or tandem for versatile use.

Weighing just 0.11kg, it’s lightweight yet robust. Compatible with SKF bearings, it’s a reliable choice for precision engineering needs. Works in temperatures from -30°C to 110°C.

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Product Parameters

  • Part Number 71908 CDGA/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 Extra light / Class A
  • 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 CDGA/P4A dimension drawing
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Features

Performance Features of 71908 CDGA/P4A Bearing

71908 CDGA/P4A Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability and smooth operation under dynamic radial loads up to 2790 lbf.

The phenolic cage maintains ball alignment, reducing friction and enhancing performance at high speeds up to 56,000 rpm.
With a precision tolerance class of P4A, it delivers consistent accuracy in demanding conditions.

71908 CDGA/P4A Bearing operates efficiently in temperatures ranging from -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 71908 CDGA/P4A Bearing
71908 CDGA/P4A Bearing is widely used in high-speed machine tools, where its precision angular contact design ensures accurate spindle rotation. The phenolic cage reduces friction, making it ideal for applications demanding smooth operation.

In robotics, 71908 CDGA/P4A Bearing supports articulated arms, providing stability during rapid movements. Its extra light preload helps maintain precision in automated assembly lines.

For medical imaging devices, 71908 CDGA/P4A Bearing’s chrome steel construction offers reliable performance under consistent radial loads. The open design allows for easy lubrication, extending service life in critical equipment.

Automotive applications include electric vehicle motors, where 71908 CDGA/P4A Bearing handles angular loads efficiently. The P4A tolerance class ensures compatibility with high-performance systems.

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