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Super Precision Angular Contact Ball Bearings 71908 CE/HCP4ADBA

Super Precision Angular Contact Ball Bearings 71908 CE/HCP4ADBA

The 71908 CE/HCP4ADBA is a super precision angular contact ball bearing with a 40mm bore and 62mm outer diameter, crafted from chrome steel for durability. It features a 15° contact angle and comes in a matched set of two bearings for balanced performance.

With ceramic balls and a phenolic cage, it handles radial loads up to 3578 lbf and spins smoothly at speeds up to 56,000 RPM. Its extra-light preload ensures minimal friction during operation.

The open design allows for easy lubrication, while the P4A tolerance class guarantees high precision. Ideal for applications like machine tool spindles or high-speed robotics.

Weighing just 0.18kg, it’s lightweight yet robust. Suitable for temperatures from -30°C to 110°C, making it versatile for various industrial uses.

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Product Parameters

  • Part Number 71908 CE/HCP4ADBA
  • 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 24 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 6.35 mm
  • Ball Qty 19
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 2 bearings <> DB
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 3578 lbf
  • Static Radial Load 2700 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 56000 rpm
  • Weight 0.18 kg
  • Price（$） 257.94
Super Precision Angular Contact Ball Bearings 71908 CE/HCP4ADBA dimension drawing
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Features

How Is 71908 CE/HCP4ADBA Bearing Engineered for Reliability?

71908 CE/HCP4ADBA Bearing features a 15° contact angle, optimised for precision angular contact applications.
The chrome steel rings and ceramic balls enhance durability while reducing friction for smoother operation.

With an extra light preload (Class A), it ensures consistent performance under dynamic radial loads up to 3578 lbf.
Its phenolic cage maintains ball alignment, extending service life even at high speeds of 56,000 rpm.

The matched arrangement of two bearings (DB) provides stability in demanding setups.
Lubrication is pre-applied, reducing initial maintenance needs and ensuring ready-to-use convenience.

Application

Industrial Uses of 71908 CE/HCP4ADBA Bearing
71908 CE/HCP4ADBA Bearing is commonly used in high-speed machine tools, where its precision angular contact design ensures accurate spindle rotation. The ceramic balls reduce friction, making it suitable for continuous operation.

In automotive applications, 71908 CE/HCP4ADBA Bearing supports components like electric motors and turbochargers, where its extra light preload enhances performance. The matched arrangement also provides stability under varying loads.

For medical imaging devices, 71908 CE/HCP4ADBA Bearing’s phenolic cage and chrome steel rings offer reliable performance in sensitive environments. Its P4A tolerance class ensures consistent accuracy for critical diagnostics.

Automation systems benefit from 71908 CE/HCP4ADBA Bearing’s low friction and high-speed capabilities, particularly in robotic arms. The open design allows for easy lubrication, extending service life in demanding setups.

In consumer electronics, 71908 CE/HCP4ADBA Bearing is ideal for high-precision printers and scanners. Its lightweight construction and ceramic balls contribute to quiet, efficient operation.

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