What are the causes and solutions for universal joint failures?

[RachelAnn]

Universal joint failure causes and solutions: 1. Loose connecting bolts in precision universal joints - this requires tightening the components. 2. Worn or loose transmission output shaft splines - this requires correction, repair, or replacement. 3. Worn or loose spline grooves on the drive shaft and drive shaft yoke - this requires replacement with new parts. The following introduces the classification of universal joints: 1. Non-constant velocity universal joint: When the angle between the two connected shafts is greater than zero, this joint transmits motion with a varying instantaneous angular velocity ratio between output and input shafts, but maintains equal average angular velocity. 2. Quasi-constant velocity universal joint: Transmits motion with equal instantaneous angular velocity at designed angles, and approximately equal instantaneous angular velocity at other angles. 3. Constant velocity universal joint: Maintains equal instantaneous angular velocity between connected output and input shafts at all times. 4. Flexible universal joint: Exhibits significant elasticity in the torsional direction.