Double Cardan Universal Joint

What Is a Double Cardan Universal Joint?

A double cardan universal joint, also known as a double cardan U-joint, is a type of universal joint that uses two intersecting shafts to transmit power. This type of joint is often used in off-road vehicles and other applications where there is a lot of vibration and shock.

Double Cardan Universal Joint

Double Cardan Universal Joints Dimensions

Double Cardan Universal Joint Dimension
Type Material Bearings Bores
mm
Torques*
max. Nm
Speeds*
max. min-1
UKD Plastic Plain bearings 31 – 10 0,08 – 10 1000
WDL Steel Plain bearings 16 – 30 18,5 – 559 800
WD Steel Plain bearings, hardened 6 – 40 6,3 – 655 800
WDN Steel Needle bearings, hardened 10 – 40 26,4 – 438 4000
WDR Stainless Plain bearings 12 – 30 18,4 – 324 800
WDNR Stainless Needle bearings, hardened 10 – 30 21 – 288 3600

Features of Double U-Joints

  • Maximum combined working angle of 90°
  • Accurate positioning and flexibility under higher operating angles
  • Available in a wide variety of materials and finishes
  • Can be customized by bores, keyways, special hub configurations
  • Lubricant retaining boots containing specialty lubricants for a variety of industries and applications

How Does a Double Cardan Universal Joint Work?

Each universal joint consists of a cross-shaped component with bearings at each end and a yoke that connects to the shafts. The two universal joints are positioned at an angle to each other, with the intermediate shaft connecting their yokes. The cross allows the shafts to rotate at different angles without binding. This is important because it allows the driveshaft to flex and absorb vibration.

Double Universal Joint Coupling

Where are Double Universal Joints Used?

  • Off-road vehicles
  • Agricultural equipment
  • Construction machinery
  • Marine applications
  • Industrial applications
Double Cardan Joint Application
Double Cardan Joint Application
Double Cardan Joint Application
Double Cardan Joint Application

How to Choose a Double Cardan Universal Joint?

Choosing a double cardan universal joint involves considering several factors to ensure compatibility and performance. Here’s a step-by-step guide to help you select the right double cardan universal joint:

  1. Determine the application and torque requirements.
  2. Calculate the operating angle between the input and output shafts.
  3. Check the joint size to ensure compatibility.
  4. Consider the material quality and durability.
  5. Ensure proper lubrication can be provided.
  6. Review manufacturer specifications for speed and temperature range.
  7. Seek expert advice if needed.
Double Cardan Universal Joint

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