The Welger 0308040000 chain wheel, also known as a sprocket, is a genuine replacement part designed for Welger AP series balers. This critical component features 13 teeth, an outer diameter of 60 mm, and a bore diameter of 20 mm. With a width of 17 mm, it is compatible with 1/2" pitch chains (1/2" x 5/16" type), ensuring efficient and reliable power transmission within agricultural baling machinery. This OEM-quality chain wheel is essential for maintaining optimal performance and durability in your Welger equipment.