... C4 5) Packing: Standard export packing * Internal&External gear 1) Range of dimensions: d, 398mm ~ 4272mm D, 602mm ... . Four-point contact ball slewing bearings: * No gear 1) Range of dimensions: d, 260mm ~ 4272mm D, ... C3, C4 5) Packing: Standard export packing * Internal gear 1) Range of dimensions: d, 458mm ~ 4272mm D, 662mm ... C4 5) Packing: Standard export packing Double Row Crane Slewing Ring Bearing