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Super Precision Angular Contact Ball Bearings 71920 CBGA/P4A

Super Precision Angular Contact Ball Bearings 71920 CBGA/P4A

The 71920 CBGA/P4A is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 4860 lbf and operates smoothly at speeds up to 16,000 RPM.

Its 15° contact angle and extra-light preload ensure precise performance, while the phenolic cage offers durability. The open design allows for easy lubrication, extending its lifespan.

This bearing is ideal for high-precision applications like machine tool spindles or medical equipment. It can be paired in back-to-back, face-to-face, or tandem configurations for versatile use.

Weighing 0.85kg, it meets P4A tolerance standards and works in temperatures from -30°C to 110°C. Interchangeable with SKF bearings, it’s a reliable choice for demanding setups.

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Product Parameters

  • Part Number 71920 CBGA/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 100 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 140 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 20 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 37
  • 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 Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 4860 lbf
  • Static Radial Load 5040 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16000 rpm
  • Weight 0.85 kg
Super Precision Angular Contact Ball Bearings 71920 CBGA/P4A dimension drawing
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Features

Performance Features of 71920 CBGA/P4A Bearing

71920 CBGA/P4A Bearing is crafted with chrome steel rings and 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 16,000 rpm, it excels in high-speed applications.

How Does 71920 CBGA/P4A Bearing Achieve High Precision?

71920 CBGA/P4A Bearing meets P4A tolerance standards, offering exceptional accuracy for demanding tasks.

The extra light preload ensures smooth operation, minimising vibration and noise.

Its dynamic radial load capacity of 4860 lbf guarantees reliable performance under stress.

The open design allows for easy lubrication, maintaining optimal efficiency.

Built for Reliability: 71920 CBGA/P4A Bearing

71920 CBGA/P4A Bearing operates seamlessly in temperatures from -30°C to 110°C, adapting to various environments.

The chrome steel construction resists wear, extending the bearing’s service life.

Its universal matching capability enables flexible configurations like back-to-back or tandem arrangements.

Weighing just 0.85 kg, it combines strength with lightweight design.

Application

Industrial Uses of 71920 CBGA/P4A Bearing
71920 CBGA/P4A Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The phenolic cage reduces friction, making it suitable for high-speed operations.

In robotics, 71920 CBGA/P4A Bearing supports articulated arms, providing smooth movement and long service life. Its extra light preload helps maintain precision in repetitive tasks.

For aerospace applications, 71920 CBGA/P4A Bearing handles radial and axial loads in components like landing gear systems. The P4A tolerance class guarantees consistent performance under demanding conditions.

Q&A

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