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Super Precision Angular Contact Ball Bearings 71908 CD/HCP4A

Super Precision Angular Contact Ball Bearings 71908 CD/HCP4A

The 71908 CD/HCP4A is a super precision angular contact ball bearing with a 40mm bore and 62mm outer diameter, crafted from high-quality chrome steel. It features a 15° contact angle and ceramic balls for smooth operation at high speeds.

This bearing handles radial loads up to 2790 lbf and can spin at an impressive 40,000 RPM. Its phenolic cage ensures durability while keeping weight low at just 0.1kg.

The open design allows for easy lubrication, and it performs reliably in temperatures from -30°C to 110°C. With ABEC-7 precision, it offers excellent accuracy for demanding applications.

Ideal for high-speed machinery like spindles or precision tools where both radial and angular loads are present. Its lightweight construction doesn’t compromise on strength or performance.

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Product Parameters

  • Part Number 71908 CD/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 40 mm
  • Bore Dia Tolerance -0.006mm to 0
  • Outer Dia 62 mm
  • Outer Dia Tolerance -0.007mm to 0
  • Width 12 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 6.35 mm
  • Ball Qty 21
  • Contact Angle 15°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 2790 lbf
  • Static Radial Load 1912 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 40000 rpm
  • Weight 0.1 kg
  • Price（$） 288.423
Super Precision Angular Contact Ball Bearings 71908 CD/HCP4A dimension drawing
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Features

Performance Features of 71908 CD/HCP4A Bearing

71908 CD/HCP4A Bearing is crafted with chrome steel rings and ceramic balls, ensuring high precision and durability.
Its 15° contact angle allows for efficient handling of combined radial and axial loads.
The phenolic cage maintains ball alignment, reducing friction and enhancing performance.
With a maximum speed of 40,000 rpm, it excels in high-speed applications.

How Is 71908 CD/HCP4A Bearing Engineered for Reliability?

71908 CD/HCP4A Bearing features a P4 tolerance class, providing exceptional precision for demanding tasks.
The ceramic balls reduce weight and increase speed capabilities while maintaining strength.
Its open design allows for easy lubrication, ensuring smooth operation over time.
The dynamic radial load capacity of 2790 lbf ensures reliable performance under stress.

Built for Precision: 71908 CD/HCP4A Bearing

71908 CD/HCP4A Bearing’s chrome steel construction offers excellent wear resistance and longevity.
The 21 ceramic balls enhance speed and reduce friction, making it ideal for precision instruments.
With a temperature range of -30° to 110°C, it performs reliably in various environments.
Its compact size (40 mm×62 mm×12 mm) makes it suitable for space-constrained applications.

Application

Essential Roles of 71908 CD/HCP4A Bearing
71908 CD/HCP4A 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 ideal for applications demanding smooth operation.

In robotics, 71908 CD/HCP4A Bearing supports articulated arms, providing stability and load capacity for repetitive movements. Its phenolic cage offers lightweight durability, perfect for automated systems.

For medical imaging devices, 71908 CD/HCP4A Bearing’s P4 tolerance class guarantees the precision needed for clear diagnostics. The chrome steel rings add longevity, even in continuous use environments.

Where Is 71908 CD/HCP4A Bearing Used?
You’ll often find 71908 CD/HCP4A Bearing in CNC machinery, where its 15° contact angle handles combined radial and axial loads efficiently. The lubricated design ensures consistent performance over long periods.

In aerospace applications, 71908 CD/HCP4A Bearing’s high-speed capability makes it suitable for instrumentation and control systems. Its ceramic balls also help reduce weight, a critical factor in aircraft components.

Built for Heavy-Duty Use: 71908 CD/HCP4A Bearing
71908 CD/HCP4A Bearing excels in industrial pumps, where its dynamic radial load capacity withstands constant pressure. The open seal type allows for easy relubrication, extending service life.

For electric motors, 71908 CD/HCP4A Bearing’s low friction design improves energy efficiency. Its temperature range ensures reliability even in demanding operating conditions.

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