Dodge® can enhance the performance of our heavy duty, mine duty or mine duty extra wing pulleys with the addition of spirals. Dodge® spiral wing pulleys are manufactured with continuous spiral bars for smooth running performance. Spiral wing pulleys are low impact on belts splices and have the added benefit of not interfering with belt scale operation. Dodge® Wing Pulley, Series: XT25, XT Bushing, 12 in Outside Dia, 38 in Face Width, 2-1/2 in Shaft Dia, Crown Face Profile