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Super Precision Angular Contact Ball Bearings 71904 FEGA/HCP4A

Super Precision Angular Contact Ball Bearings 71904 FEGA/HCP4A

The 71904 FEGA/HCP4A is a super precision angular contact ball bearing, measuring 20mm by 37mm by 9mm. Made from chrome steel with ceramic balls, it offers smooth operation and durability.

With an 18° contact angle, it handles radial loads up to 1098 lbf and spins at speeds up to 100,500 RPM. The phenolic cage ensures quiet performance and long service life.

Its open design allows easy lubrication, while the P4A tolerance class guarantees high precision. Ideal for applications like machine tools or high-speed spindles where accuracy is key.

Weighing just 0.032kg, it’s lightweight yet robust. Compatible with SKF bearings and suitable for temperatures from -30°C to 110°C. Works well in back-to-back, face-to-face, or tandem arrangements.

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Product Parameters

  • Part Number 71904 FEGA/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 20 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 37 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 9 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 4.762 mm
  • Ball Qty 14
  • Contact Angle 18°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 2
  • 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 Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 1098 lbf
  • Static Radial Load 522 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 100500 rpm
  • Weight 0.032 kg
Super Precision Angular Contact Ball Bearings 71904 FEGA/HCP4A dimension drawing
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Features

Why Choose 71904 FEGA/HCP4A Bearing for Precision Tasks?

71904 FEGA/HCP4A Bearing features a 18° contact angle, ideal for high-precision angular contact applications.
Its ceramic balls and chrome steel rings ensure minimal friction and enhanced durability.

With a dynamic radial load capacity of 1098 lbf, it handles demanding tasks efficiently.
The phenolic cage maintains ball alignment, contributing to smooth operation even at high speeds.

71904 FEGA/HCP4A Bearing operates at temperatures from -30°C to 110°C, suitable for varied environments.
Its P4A tolerance class guarantees consistent performance in precision instruments.

The extra light preload design reduces vibration, making it perfect for sensitive applications.
Lubricated for longevity, it ensures reliable performance with minimal maintenance.

Application

Common Applications of 71904 FEGA/HCP4A Bearing
71904 FEGA/HCP4A Bearing is widely 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, 71904 FEGA/HCP4A Bearing supports articulated arms, providing stability and responsiveness. Its lightweight phenolic cage enhances performance in dynamic movements.

For dental drills, 71904 FEGA/HCP4A Bearing’s P4A tolerance class guarantees consistent precision. The open seal design allows for easy lubrication, extending service life in medical environments.

Automotive turbochargers benefit from 71904 FEGA/HCP4A Bearing’s ability to handle high RPMs. The chrome steel rings and ceramic balls withstand extreme temperatures and loads.

In 3D printers, 71904 FEGA/HCP4A Bearing ensures smooth linear motion. Its extra-light preload reduces vibration, improving print quality.

Q&A

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