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Super Precision Angular Contact Ball Bearings 71820 CD/P4

Super Precision Angular Contact Ball Bearings 71820 CD/P4

The 71820 CD/P4 is a super precision angular contact ball bearing with a 100mm bore and 125mm outer diameter, crafted from durable chrome steel. Its compact 13mm width makes it suitable for space-sensitive applications.

With a 15° contact angle, it handles both radial and axial loads efficiently, supporting up to 5062 lbf dynamically. It spins smoothly at speeds up to 14,000 RPM, ideal for high-performance machinery.

The open design allows easy lubrication, while the phenolic cage ensures quiet operation and longevity. It operates reliably in temperatures from -30°C to 110°C.

This bearing is interchangeable with SKF models and comes in matched sets for precise alignment. Perfect for spindle drives or precision tools where accuracy is key. Weighing 0.31kg, it balances strength and lightness.

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Product Parameters

  • Part Number 71820 CD/P4
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 100 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 125 mm
  • Outer Dia Tolerance -0.009mm to 0
  • Width 13 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.144 mm
  • Ball Qty 34
  • Contact Angle 15°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Available
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 5062 lbf
  • Static Radial Load 6525 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 14000 rpm
  • Weight 0.31 kg
  • Price（$） 1271.25
Super Precision Angular Contact Ball Bearings 71820 CD/P4 dimension drawing
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Features

Performance Features of 71820 CD/P4 Bearing

71820 CD/P4 Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and noise.
With a dynamic radial load capacity of 5062 lbf, it handles demanding tasks efficiently.
The P4 tolerance class guarantees high precision, making it suitable for critical operations.

How Is 71820 CD/P4 Bearing Engineered for Reliability?

71820 CD/P4 Bearing features a matched arrangement and preload options, enhancing stability under heavy loads.
Its chrome steel construction resists wear, maintaining performance in high-speed applications up to 14,000 rpm.
The open design allows for easy lubrication, ensuring smooth operation over time.
With a static radial load capacity of 6525 lbf, it delivers consistent reliability.

Optimized for Efficiency: 71820 CD/P4 Bearing

71820 CD/P4 Bearing’s phenolic cage minimises friction, contributing to energy-efficient operation.
Its precise P4 tolerance class ensures minimal vibration, ideal for high-precision machinery.
The bearing operates smoothly within a temperature range of -30° to 110°C, adapting to various environments.
With 34 balls of 7.144 mm diameter, it balances load distribution and speed capabilities.

Steel vs Ceramic Bearings: Strengths of 71820 CD/P4 Bearing

71820 CD/P4 Bearing uses chrome steel for both rings and balls, offering a cost-effective yet durable solution.
Its phenolic cage provides quiet operation, making it suitable for precision instruments.
The bearing’s 15° contact angle ensures optimal performance in angular contact applications.
With a weight of 0.31 kg, it combines strength with manageable handling.

Application

Industrial Uses of 71820 CD/P4 Bearing
The 71820 CD/P4 Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. Its phenolic cage reduces friction, making it suitable for high-speed operations.

Where Is 71820 CD/P4 Bearing Used?
You’ll often find the 71820 CD/P4 Bearing in automotive applications like electric motors, where its 15° contact angle handles combined loads efficiently. The P4 tolerance class ensures reliable performance in demanding conditions.

Built for Heavy-Duty Use: 71820 CD/P4 Bearing
The 71820 CD/P4 Bearing excels in industrial robotics, providing smooth motion control for robotic arms. Its chrome steel construction offers durability, even in continuous operation environments.

Automotive vs Aerospace: Applications of 71820 CD/P4 Bearing
In automotive systems, the 71820 CD/P4 Bearing supports gearboxes, while in aerospace, it’s used in flight control systems. Its high-speed capability and precision make it versatile across industries.

Perfect Fit for Automation: 71820 CD/P4 Bearing
The 71820 CD/P4 Bearing is ideal for automated production lines, where its matched arrangement ensures consistent performance. Its open design allows for easy lubrication, extending service life.

Q&A

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