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Super Precision Angular Contact Ball Bearings 71918 CE/HCP4A

Super Precision Angular Contact Ball Bearings 71918 CE/HCP4A

The 71918 CE/HCP4A is a super precision angular contact ball bearing with a 90mm bore and 125mm outer diameter, crafted from high-quality chrome steel. It features a 15° contact angle and ceramic balls for smooth operation.

This bearing handles radial loads up to 6908 lbf and reaches speeds of 27,000 RPM, making it suitable for high-performance applications. Its phenolic cage ensures durability and reduced friction.

The open design allows for easy lubrication, while the P4 tolerance class guarantees precise performance. It operates well in temperatures from -30°C to 110°C.

Ideal for precision machinery like spindles or CNC equipment, this lightweight bearing weighs just 0.46kg. It’s interchangeable with SKF models for convenient replacements.

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Product Parameters

  • Part Number 71918 CE/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 90 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 125 mm
  • Outer Dia Tolerance -0.009mm to 0
  • Width 18 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 11.112 mm
  • Ball Qty 24
  • 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 6908 lbf
  • Static Radial Load 5400 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 27000 rpm
  • Weight 0.46 kg
  • Price（$） 11.466
Super Precision Angular Contact Ball Bearings 71918 CE/HCP4A dimension drawing
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Features

Performance Features of 71918 CE/HCP4A Bearing

71918 CE/HCP4A Bearing features a 15° contact angle, optimised for precision angular contact applications.

Its chrome steel rings and ceramic balls ensure smooth operation, even at high speeds up to 27,000 rpm.

The phenolic cage provides excellent stability, reducing friction and wear during use.

With a dynamic radial load capacity of 6908 lbf, it delivers reliable performance in demanding conditions.

Application

Industrial Uses of 71918 CE/HCP4A Bearing
71918 CE/HCP4A Bearing is commonly used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction and heat buildup. The P4 tolerance ensures precise operation, making it ideal for CNC spindle applications.

Where Is 71918 CE/HCP4A Bearing Used?
You’ll often find 71918 CE/HCP4A Bearing in automotive transmissions, where its angular contact design handles combined radial and thrust loads efficiently. The 15° contact angle provides stability at high rotational speeds.

Built for Heavy-Duty Use: 71918 CE/HCP4A Bearing
71918 CE/HCP4A Bearing works well in robotics, particularly in articulated arms requiring smooth, precise movement. Its chrome steel rings and ceramic balls offer durability in continuous operation.

Medical vs Industrial: Where 71918 CE/HCP4A Bearing Excels
In medical imaging devices, 71918 CE/HCP4A Bearing provides quiet, vibration-free performance. For industrial pumps, its lubricated design ensures long service life even under constant load.

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