Lincoln Service Parts 1 › Lincoln Electric 9SS12881 HELICAL GEAR (57/1) S12881 Lincoln Electric 9SS12881 HELICAL GEAR (57/1) S12881 Sale Price: $232.77 Original Price: $267.68 HELICAL GEAR (57/1) PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! HELICAL GEAR (57/1) PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1