TR series slewing ring bearings
The TR series consists of three-row roller bearings, offering the highest capacity for a given diameter. When an XR or DT series bearing doesn't meet your stiffness and capacity requirements, consider the TR series. TR series roller bearings optimize capacity, provide low frictional resistance and minimize deflection. TR series roller bearings have been used successfully in heavy duty applications requiring extra stiffness and capacity, including radar, cranes, excavators, stackers and reclaimers, and heavy mill equipment.

Wire-race slewing bearings
VK Wire-race slewing bearings were originally designed for military turret applications, where space and weight are at a premium and corrosion resistance is essential. They consist of wire raceways inserted in lightweight support rings, allowing for a high load capacity and large diameter in a bearing that can be 60% lighter than one made entirely of steel. Wire-race slewing bearings are custom manufactured to fit each design and specification. Wire-race slewing bearings have been used successfully in applications requiring a lightweight, corrosion-resistant bearing, including turrets, radar, and sonar.
Catalog: VK wire-race slewing bearings (Adobe PDF)

Wind energy slewing ring bearings
VK engineers apply their experience and expertise to create finite solutions to address the most unique bearing challenges, making Kaydon North America's leading supplier of wind turbine bearings. VK has the experience and capability to support critical pitch, blade, yaw and gearbox applications in systems from 200 kW to 5.0 MW and beyond.

Whether the requirement is for high or low wind speed, land based or off shore, 200 kW or 5.0 MW  long with meeting critical customer requirements and industry regulations such as those specified by Germanischer Lloyd "Non-Marine Technology offshore Wind Energy"VK's engineers can solve even the most difficult challenges.