The large pulley provide more interface for strap and decrease tension of strap and avoid sliding to prolong the using life of strap and bearing.
大直径的皮带轮，给皮带提供了更多的接触面积，可减少皮带所受的张力并避免其滑落的可能，进而延长了皮带及轴承的寿命。
The tension and elongation of solid woven carcass can keep balance when entering pulley.
整体纺织带芯在进入带轮时其拉力和伸长可达平衡。
It points out that the position of the maximum strain, stress and tension is at first group trough type roller, not at passing poion of pulley if the head drum works as pulley.
指出在头部滚筒作为驱动滚筒的布置系统中，胶带最大应变、力及张力位置不在驱动滚筒相遇点，而在过渡段第一组槽形托辊处。
It points out that the position of the maximum strain, stress and tension is at first group trough type roller, not at passing poion of pulley if the head drum works as pulley.
指出在头部滚筒作为驱动滚筒的布置系统中，胶带最大应变、力及张力位置不在驱动滚筒相遇点，而在过渡段第一组槽形托辊处。
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