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Super Precision Angular Contact Ball Bearings 71909 CEGA/HCP4A

Super Precision Angular Contact Ball Bearings 71909 CEGA/HCP4A

The 71909 CEGA/HCP4A is a super precision angular contact ball bearing measuring 45mm by 68mm by 12mm, crafted from chrome steel with ceramic balls for enhanced performance. It handles radial loads up to 2340 lbf and reaches speeds of 41,000 RPM, making it suitable for high-speed applications.

Its 15° contact angle and extra light preload ensure smooth operation with minimal friction. The phenolic cage adds durability while keeping the bearing lightweight at just 0.12kg.

This bearing is ideal for precision machinery like spindles or CNC tools, where accuracy and speed are crucial. It operates efficiently in temperatures from -30°C to 110°C and comes lubricated for ready use.

Compatible with SKF bearings, it can be arranged back-to-back, face-to-face, or tandem for versatile setups. Its P4A tolerance class guarantees high precision in demanding environments.

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Product Parameters

  • Part Number 71909 CEGA/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 45 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 68 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 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 2340 lbf
  • Static Radial Load 1530 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 0.12 kg
  • Price（$） 158.544
Super Precision Angular Contact Ball Bearings 71909 CEGA/HCP4A dimension drawing
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Features

Performance Features of 71909 CEGA/HCP4A Bearing

71909 CEGA/HCP4A Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and ceramic balls enhance durability while reducing friction.

The phenolic cage maintains ball alignment, ensuring smooth operation even at high speeds up to 41,000 rpm.
With a dynamic radial load capacity of 2340 lbf, it handles demanding conditions reliably.

71909 CEGA/HCP4A Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its precision P4A tolerance class ensures consistent performance in high-accuracy applications.

The open design allows for easy lubrication, extending the bearing’s service life.
Its universal matching capability supports various configurations like back-to-back or face-to-face arrangements.

Application

How Does 71909 CEGA/HCP4A Bearing Improve Performance?
71909 CEGA/HCP4A Bearing is widely used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction for smoother operation. The 15° contact angle helps manage combined radial and axial loads efficiently.

In robotics, 71909 CEGA/HCP4A Bearing ensures precise movement in joints and rotary tables, thanks to its P4A tolerance class. Its lightweight design also minimises energy consumption in automated systems.

For medical imaging devices, 71909 CEGA/HCP4A Bearing’s chrome steel rings provide stability during high-speed rotations. The open seal design allows for easy lubrication, extending service life in critical applications.

What Makes 71909 CEGA/HCP4A Bearing a Preferred Choice?
71909 CEGA/HCP4A Bearing excels in aerospace applications, such as gyroscopes, due to its extra-light preload and ceramic components. The metric dimensions ensure compatibility with international equipment standards.

In dental drills, 71909 CEGA/HCP4A Bearing’s high-speed capability (up to 41,000 rpm) ensures reliable performance. The temperature range of -30°C to 110°C makes it suitable for sterilisation processes.

Built for Versatility: 71909 CEGA/HCP4A Bearing
71909 CEGA/HCP4A Bearing works well in 3D printers, providing accuracy for detailed prints. Its universal matching feature allows flexible arrangement in back-to-back or tandem configurations.

For small wind turbines, 71909 CEGA/HCP4A Bearing handles variable loads while maintaining low friction. The phenolic cage resists corrosion, ideal for outdoor environments.

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