CCTY Bearing | Universal Joint with a Square Ball
Universal joints in steering applications can be improved with the Square Ball Universal Joint. It's simple and smooth. Plus this u-joint has a stronger design.
ujoint, u-joint, square ball universal joint, universal joint
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Square Ball Universal Joint TM

Meet the Square Ball Universal Joint TM

CCTY Bearing’s Application Design Team has developed a smoother, stronger bearing. The square ball is capable of transferring torque through misaligned applications.

    Square Ball Universal Joint TM  

A square ball has redesigned the century-old universal joint. Below are 3 advantages of the Square Ball Universal Joint TM (SBUJ) in steering applications over u-joints with needle bearings:


Larger Load Zone
Universal joints with needle bearings are subject to line load fretting on the raceways from continued vibration, reducing the expected service life.

  • The SBUJ has a larger load zone than the combined line contact area of needle bearings.
  • A larger load zone withstands vibrating applications by spreading the same vibrating surface pressure over a larger area.


Low Starting & Operational Torque Resistance
Starting rotational torque of a SBUJ is very low, ranging from 0 to 0.025Nm when the operating angle range is 0 to 25 degrees. Since there are only 3 moving parts, starting torque is consistent.

  • Needle bearing u-joints can have over 100 parts per assembly. Tolerance stack-up issues with this many components have inconsistent startup torque values from unit to unit.
  • Very low and consistent startup torque values of the SBUJ provide advantages for autonomous steering applications.


Boot Sealed Design
All moving components are lubricated and maintenance free.


Patent Pending 
An international and US patent for the SBUJ has been applied for under:

  • US Application Nos. 62/276,432, 62/296,338 and 62/396,348
  • China P.R. Application No. 20178000404.2

Click on the video above to view the Square Ball Universal Joint TM in motion. You’ll see that it’s:

•    Simply Smoother
•    Simply Stronger
•    Simply a Square Ball

While a typical u-joint can consist of more than 100 components, CCTY’s version has just eight.

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