The function of the sprocket is to drag the track and prevent the track from sagging too much, so as to reduce the vibration and jump phenomenon of the track in the movement and prevent the track from slipping laterally. The supporting pulley is similar to the supporting wheel, but it bears less load and the working condition is better than the supporting wheel, so the size is smaller.
The function of the sprocket is to drag the track and prevent the track from sagging too much, so as to reduce the vibration and jump phenomenon of the track in the movement and prevent the track from slipping laterally. The supporting pulley is similar to the supporting wheel, but it bears less load and the working condition is better than the supporting wheel, so the size is smaller.
