DPB Crossed Roller Slewing rings are built with V-groove raceways providing two roller paths in each ring. By alternating adjacent rollers at right angles to one another, one-half of the rollers transmit loads in one direction with the other half transmitting loads in the other direction. The crossed roller bearing design provides a higher theoretical dynamic capacity per unit size, greater stiffness, and a lower spring rate than a single roll ball slewing ring design. Specifications: Raceway diameters: standard models from 12" to 120" Capacities: Thrust: from 80, 000 to 2, 700, 000 pounds Moment: from 16, 000 to 6, 700, 000 pounds Radial: from 16, 000 to 800, 000 pounds Gearing: internally geared, externally geared or gearless models are available. Applications: excavators, lift truck rotators, industrial turntables, capstans, turnstiles, mining equipment and antennas.