The SIG series is built upon the single-row crossed roller architecture, where cylindrical rollers are positioned in an alternating perpendicular arrangement within a common raceway. This geometric configuration allows the bearing to act as a multifunctional support element, simultaneously resisting radial loads, bidirectional axial forces, and overturning moments. The crossed roller design inherently provides greater system rigidity than conventional ball-type slewing rings, as the line-contact interface distributes applied loads across a broader surface area, reducing localized stress concentrations and enhancing overall structural stability.

What sets the SIG series apart is its sophisticated internal gear design. The gear teeth are incorporated directly into the inner ring's bore with a focus on optimizing the tooth profile for both strength and smoothness of engagement. The gear is engineered to accommodate higher rotational speeds compared to traditional slewing bearings, making the SIG series suitable for applications that require both positioning accuracy and moderate-speed continuous rotation.