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Super Precision Angular Contact Ball Bearings 71812 CD/P4DFA
Super Precision Angular Contact Ball Bearings 71812 CD/P4DFA

Super Precision Angular Contact Ball Bearings 71812 CD/P4DFA

The 71812 CD/P4DFA is a super precision angular contact ball bearing measuring 60mm by 78mm by 20mm, crafted from high-quality chrome steel. It features a 15° contact angle and comes in a matched set of two bearings arranged face-to-face (DF).

With a dynamic radial load capacity of 4972 lbf, it spins smoothly at speeds up to 33,000 RPM. The phenolic cage ensures quiet operation and durability.

Its open design allows for easy lubrication, while the P4 tolerance class guarantees high precision. Ideal for applications like machine tool spindles or high-speed rotary systems.

Weighing just 0.2kg, it’s lightweight yet robust, suitable for temperatures from -30°C to 110°C. Interchangeable with SKF bearings for easy replacements.

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Product Parameters

  • Part Number 71812 CD/P4DFA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 60 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 78 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 20 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 5.556 mm
  • Ball Qty 28
  • Contact Angle 15°
  • Tolerance Class P4
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 2 bearings >< DF
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 4972 lbf
  • Static Radial Load 6412 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 33000 rpm
  • Weight 0.2 kg

Features

Performance Features of 71812 CD/P4DFA Bearing

71812 CD/P4DFA 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 for smoother operation.

With a dynamic radial load capacity of 4972 lbf, it handles demanding conditions reliably.
The extra light preload (Class A) enhances precision, making it suitable for high-speed applications up to 33,000 rpm.

71812 CD/P4DFA Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its matched arrangement (DF) of two bearings ensures stability and consistent performance.

Application

Industrial Uses of 71812 CD/P4DFA Bearing
71812 CD/P4DFA 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.

Where Is 71812 CD/P4DFA Bearing Used?
In automotive applications, 71812 CD/P4DFA Bearing supports gearbox systems, providing smooth performance under radial and axial loads. Its extra-light preload helps maintain precision in shifting mechanisms.

Built for Heavy-Duty Use: 71812 CD/P4DFA Bearing
This bearing excels in robotics, particularly in robotic arms requiring precise movement and durability. The chrome steel construction ensures long-lasting performance in demanding environments.

Medical vs Industrial: Where 71812 CD/P4DFA Bearing Excels
In medical imaging devices, 71812 CD/P4DFA Bearing offers reliable performance with minimal vibration. Its P4 tolerance class makes it ideal for applications where precision is critical.

Automotive vs Aerospace: Applications of 71812 CD/P4DFA Bearing
For aerospace components, 71812 CD/P4DFA Bearing handles high-speed rotations with ease. Its matched arrangement ensures stability in critical flight systems.

Q&A

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