Martin offers standard duty drum pulleys using a minimum 1/4 in rim, 3/8 in end discs and 1/4 in center discs. Each standard drum pulley features a two piece rolled rim, which has been fabricated on either of our flat or custom crowned roll machines. The rims are trimmed and hydraulically seated around the heavy end discs to ensure maximum concentricity. Once the pulley is formed, Martin utilizes a submerged arc weldment to ensure optimum connection of its individual components. Our trademark standard duty pulley is the heaviest off the shelf CEMA grade pulley in the industry. The thicker materials used in our standard duty pulleys yield longer life and better resistance to wear and stress that are present in every conveying application. Martin Drum Pulley, Standard Duty, MXT45 Bushing, 36 in OD, 30 in Face Width, 4-1/2 in Shaft Diameter, Crown Face Profile, Steel