The 9249476 support roller is a critical undercarriage component designed for a wide range of Hitachi excavator models. This roller plays a vital role in maintaining track tension and guiding the track chain, which is essential for stable and efficient machine operation. Constructed for durability, it is engineered to withstand demanding working conditions and provide an extended service life. Key technical specifications include an outer diameter of 200 mm, a tread diameter of 150 mm, and an overall height of 260 mm. The roller has a collar diameter of 230 mm, bolt hole diameter of 20 mm, and a bolt hole distance of 180 mm, with a total weight of 25.5 kg.