Turntables are available in different sizes based upon the application. Beyond rotating a car from one track to another, large diameter car turntables can assist in equalizing wheel wear due to differing track system geometries. In this application the turntable can rotate the entire car so that wheel wear becomes more even. Turntables are also available to rotate a single truck in 90° increments. These turntables can be either manual or motorized in their rotation. Turntables operating in these applications utilize both ball bearing and caster designs. Recently designed car shops utilize a truck turntable on each car hoist service track. This arrangement allows the selective change out and use of any truck, regardless of its position within the shop. Whiting turntables are extremely rugged, well balanced, and are suitable for both freight and metro service.