The Hanix 4020000087 track roller is a high-quality, genuine OEM component designed for Hanix mini excavators including models H08B, H15A, H15B, H17A, H17B, H22A, H22B, H26B, H30A, H30B, H35A, H35B, H36A, H36B, H50A, H50B, H75B, H75C, and H150. This bottom roller features a flange diameter of 140 mm, a tread diameter of 100 mm, and a width of 100 mm. It has two M16 mounting holes with a distance of 110 mm, and weighs 8.5 kg, providing reliable support and guidance for the track system.