The cardan shaft is designed to transmit torque from the gearbox to the axle at a constantly changing angle. The spider provides a movable joint that can change angle on rough roads and compensate for gimbal deformation.
The increased service life of the redBTR cardan shaft is also achieved by hardening the shaft splines to a hardness of at least 45 units (HRC) according to Rockwell.
Automated fitting of cross bearings eliminates deformation of forks and flanges during assembly.
There are 3 degrees of spline protection:
All cardan shaft units are serviceable. There are grease fittings located for lubricating the ball, crosses and lubricating the spline.
Shaft balancing is carried out on the German equipment of the company "Shenck" with a high accuracy of up to 10 grams, in comparison with regular ones where the accuracy reaches up to 40 grams. The high balancing accuracy of the redBTR shafts reduces vibration and noise during operation.