TOWER CRANES Description Tower crane in one among the historical application where La Leonessa excels more than any other Italian company as a supplier Boom Originally designed with the roller configuration La Leonessa slewing ring has evolved initially from the one row of balls design to the two rows of balls. Data request form Main characterisctics of tower cranes slewing rings: Position Environment Spacers Seals Grease Options Boom Continental PA6 standard NBR standard EP2 standard Hardened gear
