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Super Precision Angular Contact Ball Bearings 71820 CDGA/P4

Super Precision Angular Contact Ball Bearings 71820 CDGA/P4

The 71820 CDGA/P4 is a super precision angular contact ball bearing with a 100mm bore and 125mm outer diameter, crafted from high-quality chrome steel. It features a 15° contact angle and comes preloaded for extra light performance, ensuring smooth operation.

This bearing handles dynamic radial loads up to 5062 lbf and spins efficiently at speeds up to 15,000 RPM. Its open design allows for easy lubrication, while the phenolic cage enhances durability and reduces friction.

With a P4 tolerance class, it offers exceptional accuracy for demanding applications. The bearing is versatile, suitable for universal matching in back-to-back, face-to-face, or tandem arrangements.

Ideal for high-precision machinery like spindles or CNC equipment, it operates reliably in temperatures from -30°C to 110°C. Weighing just 0.31kg, it’s a lightweight yet robust solution for precision engineering needs.

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Product Parameters

  • Part Number 71820 CDGA/P4
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 100 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 125 mm
  • Outer Dia Tolerance -0.004mm 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
  • 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 5062 lbf
  • Static Radial Load 6525 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 15000 rpm
  • Weight 0.31 kg
  • Price（$） 29.565
Super Precision Angular Contact Ball Bearings 71820 CDGA/P4 dimension drawing
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Features

Performance Features of 71820 CDGA/P4 Bearing

71820 CDGA/P4 Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
The chrome steel rings and balls enhance durability, supporting dynamic radial loads up to 5062 lbf.

Its phenolic cage ensures smooth operation, reducing friction and noise even at high speeds.
With a maximum speed of 15,000 rpm, it delivers reliable performance in precision tasks.

The extra light preload (Class A) minimises deflection, maintaining accuracy under stress.
Its open design allows easy lubrication, extending service life in varied conditions.

The P4 tolerance class ensures high precision, making it suitable for demanding industrial use.
Weighing just 0.31 kg, it balances strength and efficiency without compromising performance.

Application

Common Applications of 71820 CDGA/P4 Bearing
71820 CDGA/P4 Bearing is widely 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, 71820 CDGA/P4 Bearing supports articulated arms, providing smooth movement and load handling. Its extra light preload helps maintain precision in repetitive tasks.

For aerospace applications, 71820 CDGA/P4 Bearing’s chrome steel construction offers durability in navigation systems. The P4 tolerance class ensures reliability under demanding conditions.

In medical imaging devices, 71820 CDGA/P4 Bearing’s low friction and high-speed capability enhance performance. The open design allows for easy lubrication, extending service life.

Q&A

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