Feature:1. Scope of Applications: This drum sprocket bearing kit is perfectly compatible for Poulan 501628301 chainsaw. You can choose according to the model.2. High Quality Material: The chainsaw sprocket replacement part is made of high quality iron material, which is not easy to damage, high hardness and high reliability.3. Great Replacement: This heavy duty drum assembly can be simply replaced, can directly replace broken or old ones. Optimize your equipment machines simply.4. Excellent Performance: After professional manufacturing, superb craftsmanship, the chainsaw sprocket replacement parts provide the stable performance.5. Simple to Use: Easy to install and use, practical accessories. Very easy to operate, no professional skills are required to guide, you can replace and install the spare parts yourself.Specification:Item Type: Drum Sprocket with BearingMaterial: IronGear Size: Approx. 17x30mm / 0.7x1.2inProduct Size: Approx. 6.7cm / 2.6inApplication: For Poulan 501628301 Chainsaw Package List:1 x Drum Sprocket1 x Needle Bearing