BNL Pulley Acetal pulleys with stainless steel or carbon steel balls as standard. Features and Benefits • Medium duty pulley • Acetal impervious to water • Pulley 1449418 has Stainless Steel ball bearings • Excellent performance Product Application Information Carbon steel - Can be used in dry applications Stainless steel - Can be used in damp applications with mild detergents Prefixes AC - Caged AF - Full complement